I didn't play it when it came out so it's not carried by nostalgia (like the old Resident Evil games which have also aged badly but I still do enjoy). Will give the second one a go someday. If it's anything like the RE remakes I'll probably enjoy it.
It's quite far down my list but will pick it up someday and probably play it via moonlight then if it's too much for the deck.
You might enjoy Bramble: The Mountain King then. It's basically a walking simulator with a good (and spooky) atmosphere and a couple of simple puzzles sprinkled in.
I finished this not long ago on my steam deck. The story was engaging but the gameplay was a bit of a slog. Had to push myself to finish it but was probably worth it in the end.
Ross (Accursed Farms) did a really good review/analysis of the game: https://youtu.be/rxOKEsBx4NU?si=a7UHgYa-TqCfnqvB
I can recommend this too. I got the WiFi version. Integrates beautifully with home assistant including motion/person detection.
That's what I do. The beauty of wireguard is that it won't respond at all if you don't send the right key. So from the outside it will appear as if none of your ports are open.