diff --git a/build/resolver/driver.go b/build/resolver/driver.go
index 671b14c5bfe9..7044713b528e 100644
--- a/build/resolver/driver.go
+++ b/build/resolver/driver.go
@@ -10,6 +10,7 @@ import (
 	"github.com/containerd/platforms"
 	"github.com/docker/buildx/builder"
 	"github.com/docker/buildx/driver"
+	"github.com/docker/buildx/util/platformutil"
 	"github.com/docker/buildx/util/progress"
 	"github.com/moby/buildkit/client"
 	gateway "github.com/moby/buildkit/frontend/gateway/client"
@@ -147,17 +148,11 @@ func (r *nodeResolver) Resolve(ctx context.Context, optPlatforms map[string][]oc
 				if err != nil {
 					return errors.Wrap(err, "listing workers")
 				}
-
-				ps := make(map[string]ocispecs.Platform, len(ww))
+				var ps []ocispecs.Platform
 				for _, w := range ww {
-					for _, p := range w.Platforms {
-						pk := platforms.Format(platforms.Normalize(p))
-						ps[pk] = p
-					}
-				}
-				for _, p := range ps {
-					workers[i] = append(workers[i], p)
+					ps = append(ps, w.Platforms...)
 				}
+				workers[i] = platformutil.Dedupe(ps)
 				return nil
 			})
 		}
diff --git a/store/nodegroup.go b/store/nodegroup.go
index 8c78acc1c94c..d19a30161234 100644
--- a/store/nodegroup.go
+++ b/store/nodegroup.go
@@ -176,7 +176,7 @@ func (ng *NodeGroup) validateDuplicates(ep string, idx int) error {
 
 	m := map[string]struct{}{}
 	for _, p := range ng.Nodes[idx].Platforms {
-		m[platforms.Format(p)] = struct{}{}
+		m[platforms.FormatAll(platforms.Normalize(p))] = struct{}{}
 	}
 
 	for i := range ng.Nodes {
@@ -213,7 +213,7 @@ func (ng *NodeGroup) nextNodeName() string {
 func filterPlatforms(in []ocispecs.Platform, m map[string]struct{}) []ocispecs.Platform {
 	out := make([]ocispecs.Platform, 0, len(in))
 	for _, p := range in {
-		if _, ok := m[platforms.Format(p)]; !ok {
+		if _, ok := m[platforms.FormatAll(platforms.Normalize(p))]; !ok {
 			out = append(out, p)
 		}
 	}
diff --git a/store/nodegroup_test.go b/store/nodegroup_test.go
index 5a55703bafa7..ece584c21e92 100644
--- a/store/nodegroup_test.go
+++ b/store/nodegroup_test.go
@@ -3,7 +3,9 @@ package store
 import (
 	"testing"
 
+	"github.com/containerd/platforms"
 	"github.com/docker/buildx/util/platformutil"
+	ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/stretchr/testify/require"
 )
 
@@ -42,3 +44,25 @@ func TestNodeGroupUpdate(t *testing.T) {
 	require.Equal(t, 1, len(ng.Nodes))
 	require.Equal(t, []string{"linux/arm64"}, platformutil.Format(ng.Nodes[0].Platforms))
 }
+
+func TestNodeGroupUpdateFiltersOnlyMatchingPlatforms(t *testing.T) {
+	t.Parallel()
+
+	ng := &NodeGroup{}
+	err := ng.Update("n1", "ctx-a", []string{"windows(10.0.17763)/amd64", "linux/amd64"}, true, false, nil, "", nil)
+	require.NoError(t, err)
+
+	err = ng.Update("n2", "ctx-b", []string{"windows(10.0.20348)/amd64", "linux/x86_64"}, true, true, nil, "", nil)
+	require.NoError(t, err)
+
+	require.Equal(t, []string{"windows(10.0.17763)/amd64"}, formatAll(ng.Nodes[0].Platforms))
+	require.Equal(t, []string{"windows(10.0.20348)/amd64", "linux/amd64"}, formatAll(ng.Nodes[1].Platforms))
+}
+
+func formatAll(pp []ocispecs.Platform) []string {
+	out := make([]string, 0, len(pp))
+	for _, p := range pp {
+		out = append(out, platforms.FormatAll(p))
+	}
+	return out
+}
diff --git a/util/platformutil/parse.go b/util/platformutil/parse.go
index b95855ffab6a..e8dfeee8cfbd 100644
--- a/util/platformutil/parse.go
+++ b/util/platformutil/parse.go
@@ -43,7 +43,7 @@ func Dedupe(in []ocispecs.Platform) []ocispecs.Platform {
 	out := make([]ocispecs.Platform, 0, len(in))
 	for _, p := range in {
 		p := platforms.Normalize(p)
-		key := platforms.Format(p)
+		key := platforms.FormatAll(p)
 		if _, ok := m[key]; ok {
 			continue
 		}
@@ -58,13 +58,11 @@ func FormatInGroups(gg ...[]ocispecs.Platform) []string {
 	out := make([]string, 0, len(gg))
 	for i, g := range gg {
 		for _, p := range g {
-			p := platforms.Normalize(p)
-			key := platforms.Format(p)
-			if _, ok := m[key]; ok {
+			v := platforms.FormatAll(platforms.Normalize(p))
+			if _, ok := m[v]; ok {
 				continue
 			}
-			m[key] = struct{}{}
-			v := platforms.Format(p)
+			m[v] = struct{}{}
 			if i == 0 {
 				v += "*"
 			}
diff --git a/util/platformutil/parse_test.go b/util/platformutil/parse_test.go
new file mode 100644
index 000000000000..1be4b6787c10
--- /dev/null
+++ b/util/platformutil/parse_test.go
@@ -0,0 +1,61 @@
+package platformutil
+
+import (
+	"testing"
+
+	"github.com/containerd/platforms"
+	ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
+	"github.com/stretchr/testify/require"
+)
+
+func TestDedupePreservesOSVersionAndFeatures(t *testing.T) {
+	t.Parallel()
+
+	got := Dedupe([]ocispecs.Platform{
+		platforms.MustParse("windows(10.0.17763)/amd64"),
+		platforms.MustParse("windows(10.0.20348)/amd64"),
+		platforms.MustParse("windows(10.0.20348+win32k)/amd64"),
+		platforms.MustParse("windows(10.0.17763)/amd64"),
+		platforms.MustParse("linux/x86_64"),
+		platforms.MustParse("linux/amd64"),
+	})
+
+	require.Equal(t, []string{
+		"windows(10.0.17763)/amd64",
+		"windows(10.0.20348)/amd64",
+		"windows(10.0.20348+win32k)/amd64",
+		"linux/amd64",
+	}, formatAll(got))
+}
+
+func TestFormatInGroupsPreservesOSVersionAndFeatures(t *testing.T) {
+	t.Parallel()
+
+	got := FormatInGroups(
+		[]ocispecs.Platform{
+			platforms.MustParse("windows(10.0.17763)/amd64"),
+			platforms.MustParse("windows(10.0.20348)/amd64"),
+		},
+		[]ocispecs.Platform{
+			platforms.MustParse("windows(10.0.20348)/amd64"),
+			platforms.MustParse("windows(10.0.20348+win32k)/amd64"),
+			platforms.MustParse("linux/x86_64"),
+			platforms.MustParse("linux/amd64"),
+		},
+	)
+
+	require.Equal(t, []string{
+		"windows(10.0.17763)/amd64*",
+		"windows(10.0.20348)/amd64*",
+		"windows(10.0.20348+win32k)/amd64",
+		"linux/amd64",
+	}, got)
+}
+
+func formatAll(pp []ocispecs.Platform) []string {
+	out := make([]string, 0, len(pp))
+	for _, p := range pp {
+		out = append(out, platforms.FormatAll(p))
+	}
+	return out
+}