This is primarily a podcast, but there is a short article with it. Also worth noting, this podcast came out before the Steam Deck OLED was announced, although it’s possible the participants knew of its existence considering they had an early review unit.
There’s always been a big gap between the games playable on portable vs non-portable devices. The switch was a big jump forward to making true current Gen games portable, but outside of Nintendo’s offerings it’s still rare for new releases to have a comparable switch port.
We’re currently in new territory imo where most new games (outside of some really terribly optimized ones) are truly playable on portable devices.