In Illustrator 2020 there is a visual bug. When editing text there suddenly comes a pixel pattern (like the one when you use Photoshop and have no images). This happens out of the text frame. When zooming out or in, it goes away, but when I am typing again it comes back at unexpected moments in weird places.

There's further really nothing else. It's just weird to the eye and this feels like a bug important enough to report it. I somehow don't like to report bugs, but I do hope Adobe is aware of this issue. For the fixing and stuff ;)