Made unfortunate discovery. Drowning is a thing and tentacles can really fuck you over in waters that are deep.
I was driving hoverbike and fucked up my trajectory and landed in an area with a lot of water. Water somehow slows hoverbike movement (why so slow!?!) and a tentacle grabbed me. The animation played at the bottom where it's dark andimpossible to see anything. Died immediately after the animation ended.
I quit game when that happened. Hoping I didn't just lose all my shit. Afraid to load it up again. Not wanting to come back just to see I lost my upgraded weapon and a lot of items.
Edit:
The machine spirit was merciful and I loaded in alive on the water's edge. Still got tentacle gunk, but at least alive and with all my gear (equipped clothing was mostly shredded).