Game opens and I'm greeted with a camera error "abort" screen.

go to (create a file 'camera.ini' if it somhow isn't there):

/home/YOUR_NAME/.config/minitGMS2/camera/camera.ini

and with atom/notepad++/anything delete the content completely and replace it with:

[camera] user_url="https://minitgame.com" api_key="featured_disabled_forever"

Runs perfectly after, even launches faster.