I personally have a huge backlog of games I’m happily playing through on the deck. And, having been burnt a few times (Cyberpunk, No Mans Sky …), I very rarely buy new full priced games anyway (better to wait for a discount and some patches!)...
That is how it sort of works the steam store displays the games the games that work with the deck. You can install other games but you get the a warning that either it has not been testet enough to make sure that it works, or that it is not recommend because that issues with the deck.
Steam Deck Won’t Survive 2025 Without A Significant Upgrade. - (Original clickbait headline and not my opinion!) (www.forbes.com)
I personally have a huge backlog of games I’m happily playing through on the deck. And, having been burnt a few times (Cyberpunk, No Mans Sky …), I very rarely buy new full priced games anyway (better to wait for a discount and some patches!)...