Should I buy a used Steam Deck for Forza Horizon 5 and potentially FH6?

I'm a recovering Xbox gamer who grew tired of the monthly cost for the ability to play my purchased games online.

Purchased a pre-built gaming PC (couldn't build it myself for less) and it's been working well. Had to re-buy my primary game Forza Horizon 5 on Steam and I plan to pre-order FH6 on Steam and spend a lot of time on it. PC is in my room, Xbox is in the living room.

I'm considering buying a cheap used Steam Deck for occasional travel, playing the occasional Halo MCC at my friend's house, and using it on a dock in the living room to phase out the Xbox.

I can buy a 512GB LCD version for around $200-250 or a used OLED for under $350.

I'm comfortable buying used electronics and understand the deck isn't the most powerful thing around, but I just don't want to regret it if FH6 plays horribly. I guess I can wait until it launches and read reviews, but then I miss out on months of time with the deck and still have to use my Xbox in the living room.