Had a blast playing Subnautica last year.

I then waited to start playing Subnautica: Below Zero on the Steamdeck while on a flight for a work trip and that was a great experience.

The story hadn't gripped me as much though.

Played it for a few weeks, but eventually lost a few days worth of progress when the deck reset and I hadn't saved in a while so I haven't gone back to it just yet because I was bummed.
It's been long enough that I could get back into it without unconsciously trying to retrace my exact steps. Thanks for reminding me about Subnautica.