Its even worse when you force Firefox to use wayland its icon doesn't even show.
Edit: Oh since everyone now is confused; I only have the flatpak version of Firefox installed yet it doesn't use the pinned icon and doesn't even use the firefox icon under wayland at all.
I’d rather developers don’t support Linux than make Electron application
Hard disagree. I'd rather run an Electron application than having to side-load Windows for some application I actually need. Also, you don't have to install Electron applications, so if you want you can just pretend they don't support Linux.