Pre-order and cancel it, just to make a point!

Report it on the discourse site, the bazzite devs respond really quick and are super helpful.

Alan Wake 2 has a lot

Maybe have a look at ARA that’s gonna release some time soon. It’s made by the civ5 devs and I’ve played the alpha playtest - so far it looks great

Have you contacted valve support?

You could try to install a different OS that’s made for the deck. Bazzite for example also has a steam deck version.

And the article reads like AI generated text.

Afaik steam is uses kde plasma, you should be able to customize it and probably use themes to get the Mac OS Look. Maybe start from there. Probably plenty of YouTube guides for that.