@ctiger: It really looks like a 3D driver issue here. Especially since your 3D graphic card is old, Window update has probably overriden your previously installed driver. If you could try the suggestions in my above posting, you would help us as well to identify the issue. Let me repeat the recommendations here again:
But it looks like we have a 3D driver problem here with our shaders. As a test, could you please activate the 'Vulkan' renderer in the graphic settings and see if that improves anything on your side? Also we recommend to install the latest 3D driver from AMD for your AMD Radeon HD 6770. It might be that a Windows update has overriden the custom AMD 3D driver. The HD 6770 is a very old card and it's no longer receiving driver updates, the latest we saw is from 2016.