[cycomanic]

I'm using sway on an Nvidia card and apart from having to use sway-nvidia (which does set some environment variables for wayland with nvidia) I don't have to set any flags for Firefox. On my laptop with Intel graphics I didn't have to use any special flags for Firefox on wayland for several years.

One thing is that the correct environment variables should be set, but all the wayland compositors have been setting these for ages AFAIK