Is there anything you’re currently missing out on with your Xbox?
Do you have any public libraries around you might borrow physical games from? (Assuming your Xbox has a disc drive)
Depending on what games you want to play, Game Pass might still be a relatively cheap option, especially if you can find it cheaper (Live Gold codes should still work conversion-wise, but who knows how much they go for these days).

A used Steam Deck or equivalent handheld PC might be a great option or addition to tour setup, obviously depending on what games you want to play.