I’m all for games being as cross-platform as possible, but considering how Apple doesn’t offer apps such as iMessage, Facetime, etc. on other platforms, I’m less sympathetic to them for this.
Apple users chose a famously closed ecosystem, so they shouldn’t be surprised when some things aren’t available to them.
The article might as well be “Valve Says Counter-Strike 2 for macOS Not Happening Because We Have a Vested Interest In Selling Steam Decks” just as Apple isn’t porting iMessage (and other apps) to Android because they have a vested interest in selling iPhones.