racer-x wrote:
No idea and I don't use ChromeBook.
There is a quick thing you can try.
Locate the "2.10" folder in your user files and delete or move it.
Then start Gimp and it should create a new one.
If it fixes the problem,
then copy all your plugins, scripts, patterns etc into the new 2.10 folder.
You can find it here: /home/user/.config/GIMP/ (if is a normal gimp) or here: /home/user/.config/GIMP-AppImage/ (if it is an appimage.
As racer-x has already explained.
With one exception,
Do not delete your current user profile folder/files.
The update to your ChromeBook,
may have done something to your GIMP user profile.
If you move or rename your current user profile folder.
Then launch GIMP,
it will create a new user profile folder,
where you can check if doing this has fixed the issue.