Keyboard functions after recent update

My MacBook Air just updated to macOS Monterey 12.0.1 and has removed the function of adding accent option when holding a letter down. I've looked into system preferences > keyboard > slider thing off but it isn't working. I'm a language student so since I updated last night, it's been a nuisance.

What can I do to return the long-press and accent options coming up? I prefer it to any other method possible.