I have been having this graphical bug where a lot of triangles(?) appear for some reason in 3D games, web browsers and buttons, it has been bugging me a lot and I have tried a bunch of things to get it out (screenshot from CS source, happens in other engines too)
P.S: I tried updating the drivers but I have no idea how???? (intel integrated graphics)
I and a few other people have been getting visual artefacts with Intel HD Graphics on Ubuntu 20+. You might want to check this question to see if you get similar symptoms and if you're using one of the kernels affected by this bug; if so, a kernel upgrade or downgrade might solve your problem -- see the answer and subsequent comment. (Of course, be careful with any kernel changes; before upgrading, be sure you know how to roll back to a previous kernel.)
