Graphics broken on macOS Monterey 3 years ago

Just got a computer with Apple Silicon and macOS Monterey. Endless Space 2 runs beautifully — except for some of the graphics. I tried a full reinstall, but that didn't help. I've got the latest version on Steam but no DLC, just vanilla ES2. What gives?

Some examples below.

Graphic Settings 6 years ago

How can I keep max graphic settings without AA? Max is 8xAA which is a bit too much. I am playing 4k, making 8xaa overkill.

What are the pixel light sources that appear in the settings as well?