The new RaspbianOS has some issues.

That is maybe related to pygame2.0 and SDL2.0 are default and didn't support framebuffer rendering the "old way".
this has do be investigated and fixed (if possible).

I will not set a due date on that milestone, cause the pandemic, christmas and the hole situation around my family is more importent to me right now. Hope you all are fine with that. I know you are. :)