I've been playing the new Guild Wars 2 expansion "Janthir Wilds". Very enjoyable, with a nice setting and soundtrack.
I've bought Spin Rhythm XD on the recent Steam Sale. Quite a nice rhythm game, with excellent native Steam Deck support.
I've also been giving Deadlock a go. So far hasn't really clicked for me though. Doesn't help that I'm not a big MOBA player, the only one I've enjoyed so far is Heroes of the Storm.