See the following image:

The following code should create a corpse with the player index of 1, but the resulting corpse has player index 2

/c local c = game.player.surface.create_entity{name = "character-corpse", position = game.player.character.position, force = game.player.force, inventory_size = 0, player_index = 1 ...

After turning the steam overlay off, the graphics seem to be working fine again. The discord overlay doesn't break the graphics, but when I open it, it flickers a lot. So there is definitely something going on with the rendering of overlays that is causing problems.

Similar problem here. When I move the terrain does render, but when standing still it is just black. I tried with various graphics settings(everything high, everything low, etc), but no change at all. The bug is also visible for me in the initial loading screen where the factorio logo disappears ...

I couldn't place a miner on a landfilled area because there was still water there even though it looks like it is ground. See image where I hover over the area with landfill.