This project is forked from Hassleless Overview Search.
Switch to the default input source when entering the overview and restores it after exiting, resolving the conflict between the input method popup and the "Type to search" feature.
Clone the repository and install it manually:
git clone https://github.com/qvshuo/overview-input-switcher.git
cd overview-input-switcher
cp -r overview-input-switcher@anjing ~/.local/share/gnome-shell/extensions/Then log out of the GNOME session and log back in.