Yeah, I've noticed these issues with Windows, but didn't bother fixing as this is more a learning project to better understand games like Minecraft. Might test some different compare modes for "love.graphics.setDepthMode" later to see if it fixes it.
https://imgur.com/a/d7ojRO7
EDIT: looks correct albeit choppy on LÖVE 11.3, Ubuntu 20.04, i3-4160 integrated. Nice job btw.