I'd argue that the steamdeck as a second device is the perfect option for those wanting to game and do work.
You don't need to buy a new M3 mac in order to play games... especially when there are no (conventional style) games on that platform!
Just spend a little less on feeding the apple beast and get a device designed for the purpose.
Personally, I think Arm is setting up a sale to Apple. If Arm makes things uncomfortable enough from a PR perspective, they can persuade apple to buy the whole company