Why does my keyboard type everything twice in Windows?

Hello! I have a laptop with Windows 11, and suddenly all the letters in the Explorer search and the Start menu search are doubled. So, every input appears duplicated, including the backspace key. This is also the case with the on-screen keyboard. I've deleted unnecessary programs, checked all settings, and reinstalled drivers.

Sometimes no letters are typed at all in the search. In Google Chrome, for example, everything is normal, as you can see here.

I think it's related to a Windows update. Any ideas? I haven't installed any new software in at least a year, except for automatic updates…