If you’re comparing them, as in you don’t have a strong preference for one vs the other, the Steam Deck wins hands down. You get access to a much larger library of games, repairability is awesome, and you can use it like a PC, because it is one.

The only reasonable reasons to get a Switch 2 are:

• play first party titles - even when emulators come out, the performance probably won’t be there on the Steam Deck
• it’s for someone who wants a very simple experience, and they’re willing to pay more
• the Steam Deck is too big for you - if you have smaller hands, it could be uncomfortable

But I don’t think most people will really be deciding between the two, they target very different markets.