I found out how to disable to the accented character popup for all apps here but I like the popup in my web browser and when typing emails but not for instance while using my terminal or IDE.
Is it possible to enable key repeat for some apps but not others or is it an all or nothing setting?
-gdefines it as a global, same asNSGlobalDomain. There's an outside possibility an app may respond to it instead as a local, e.g https://apple.stackexchange.com/questions/308104/activate-pressandhold-for-libreoffice-or-openoffice – Tetsujin Jan 03 '23 at 12:19