I'd argue the Windows API at this point is a stable platform that can be targeted to deliver for Linux gamers. The Linux native ports keep breaking because of

I'd argue the Windows API at this point is a stable platform that can be targeted to deliver for Linux gamers. The Linux native ports keep breaking because of outdated dependencies, while Wine/Proton offers a stable experience that keeps getting better (most recently the Wayland support). It seems to me that releasing native Linux games at this point cost more than it's worth.