Complete mixed bag! But I never find out until I pick up the SD for more gaming.

I’ll pick up the deck and go to launch a game, just to have it tell me I’m still playing something else.

I feel the review statement (“For now, it’s a great device…for the household TV”) for the PSPortal is more accurate for the SteamDeck, since the SD can also do remote play with PS5 and may be an arguably better experience “save for a few baffling caveats”.