wine already runs on Mac so really they would just need something like dxvk to have a package similar to proton To be honest if Apple wanted to they could work

wine already runs on Mac so really they would just need something like dxvk to have a package similar to proton To be honest if Apple wanted to they could work with valve to make gaming on Mac a reality To some degree it should already be possible with wine + dxvk + moltenvk