When I tell people I love my Steam Deck, I also warn them that it's not for everyone and that there are downsides and you have to find compromises. I know that my software developer background helps a lot with the tinkering, so the value I get is different from what non-technical people would get.
I also have an extensive Epic Game Library, mostly from free games grabbed in one click every week, and using the third-party launcher Heroic that supports Epic and GoG, I can play them on SteamOS on the Deck, sometimes with tinkering too (solved with winetricks / protontricks mostly).
And I feel that the industry as a whole would benefit from giving players a true choice in the operating system they want, and not just between GNU/Linux and Windows.