Help deactivated this "not very useful" captilzation option.

Hi hello, I just can't seem to find the option to desactivated the white square that tells me when i hit caps, this square: https://preview.redd.it/ecp5i7tp8ace1.png?width=692&format=png&auto=webp&s=9e588abc7d4f26f9076a8641e27d0e902de144c3 It appears everytime I hit that key... Also, If anybody knows to actually switch between open windows, in windows its alt+tab but here I can only switch between apps, so If i have multiple opened chromes I can only switch to my last used chrome