The Abysm demo is now out on Steam, making it really easy to try it out, at least if you are as well:
https://store.steampowered.com/app/4119340/Abysm_Demo/
It's available for Windows and Linux, and one of the reasons it is on Steam in the first place is to make it easy to play on the Steam Deck, so if you have one, that's an option
