Turns out it’s an issue with how COSMIC does compositing: https://wiki.archlinux.org/title/Wayland#Input_grabbing_in_games,_remote_desktop_and_virtual_machine_windows
So basically, I can either drop PopOS, drop COSMIC, or wait for them to fix things.
Workers and Resources is great! Highly recommend it if you like realistic city builders 🙂
Running it through Proton. Due to the above issues with Wayland, Alt + Enter don’t work to make it fullscreen. I’ll need to see if I can find another way to force it. Adding -fullscreen to the launch options didn’t work either. Will try the INI file when I get the opportunity.
Could also be a rogue cosmic particle. They can get mad!