We ship native Linux builds for Tiny Glade, but because Linux is a more of an ecosystem than a singular entity, various oddities can sometimes appear.
Our Linux builds are compiled in an Ubuntu 18.04 LTS, and we try to use as few dependencies as possible.
In Steam, Tiny Glade is configured to run in the Sniper runtime. If this gives you any trouble, you can bypass it by running the executable directly from the game's folder.
We don't currently support Wayland, and it is sometimes glitchy. If you have the option, please use X11 instead. Otherwise the Proton will probably work.
Some issues seen specifically on Wayland include:
You might be able to work around those issues by proxying Tiny Glade through Gamescope (likely already in your distro).
Use the following launch option for Tiny Glade in Steam:
gamescope -W 1920 -H 1080 -f --force-grab-cursor -- %command%
Replace 1920 and 1080 with your preferred resolution.