Dying is not an issue.
Escape and hit save is also not an issue for the free epic game version of subnautica.
Some stuff could not be build as I wanted to.
When I build a tunnel over a damaged ship part from the game, the hole ship vanished and I could pick up all the loot. I reported that bug for years. So you do not need to move around all that damaged ship part at all.
They should put in a little effort in the building section so you can build more when it's visually possible. Deconstructing many parts because of a coding bug is not fun.