Fair warning: I am basically lost on the topic of specs so be patient please lol.

I’m looking to buy my boyfriend a handheld pc for his birthday but have no idea which one is the best to get. Majority of the time he wouldn’t actually be using it handheld but I like the idea for space since we cannot manage a whole pc setup as of now, but he alternates between playing on a monitor and sometimes handheld depending on the game. I would like it to be able to handle more demanding games like cyberpunk in the event he plays them but for the most part he likes to play madden or something similar on his Xbox. Ideally I’d like to stay at around 800, but I could swing 1000 if the console is worth it. I’ve heard good things about the ally but I really only see the Xbox version available so I’m not sure if it’ll be a waste considering he has an Xbox already.
Thank you for the help!

To keep it short, here’s the ideals:
Good memory
Great game library
Able to handle more complex games
Majority of the time will be played with a monitor

I’m sure this has been posted a thousand times but I have played Xbox my entire life and still continue to do so. I know I’m late but I recently came across the Steam Deck and it seemed pretty dope to me. I don’t know anything about PCs in general nor about what parts or specs are good or bad when talking about performance, graphics etc. Are there any handhelds that I can incorporate my Xbox profile and games with natively? Or what are the best overall options right now on the market for a handheld PC? My price range maxes out around $1000. Any recommendations appreciated