what's up with my phone/browser? when I try to edit texs it changes screen

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If I do click in the text space when writing, the screen changes to something else, and it doesn't change until I don't click a keyboard button

 

this doesn't also happens on the ltt forum, but pretty much everywhere, whenever there is a text form

I've tried with different browser and there is the same issue

 

using xiaomi mi 10 lite, I had the same issues with some older phones, and it happened after a while that I was using them...