I don't use the Linux version but I can imagine that your need to delete files in order to save the game is caused by the same issue that I reported in the topic below. When you have bots that "Repeat forever" an action such as chopping down trees or threshing grain which then creates a super-tall pile of something, every item in that pile is then included in the file being saved, which I have seen becomes a huge file of over 3,400 KB. I suggest that you review this post and take whatever action is similar for Linux so that your game will keep running.
So, I checked my save files, they're only 750kb, and my resources are fairly well balanced, so I don't think we have the same issue. The entire program folder is only 200mb, I can't figure out where all the space went. I'm assuming its a swap file in a temporary folder somewhere. I cleared 15gb so it had plenty of room, and it swallowed all that up as well, lol. I keep a usb drive handy, that seems like the quickest easiest solution, lol.
Have you managed to get berries to work? I've only tried a couple of times, but after a short while (it might be triggered by restoring from a saved game) the berries become useless, you can't pick them up off the ground or take them out of the storage container, or even feed them to the folk, they just refuse to do anything except, one time a bot was holding one and trying to store it into a container, so I took it off him, and I was able to plant it. But it grew into a useless bush, that refused to be thrashed.
Berries seem to be the only renewable food. There's not enough cows to feed everyone on milk, and bread requires sticks aren't renewable for some reason.
You will need lots of cows to make lots of butter. Even if you collect all of the cows in the game, you might still want to somehow get more cows to feed everyone. Here is a link that provides information on how you can add more cows to the game. The link will not work with Internet Explorer; you can use Google Chrome instead. https://autonauts.fandom.com/f/p/3100000000000000076
Yes, I suspect you are right about the save file being corrupted, probably while trying to save to a disk with not enough space on it. I just started a new game and that solved them problem.
I looked up the log file, and it has about 45 lines of generic looking messages involving buffers and files, then these two lines:
Graphics.CopyTexture can only copy between same texture format groups (OpenGL internal formats: src=35905, blockSize=3 ; dst=32856, blockSize=4)
(Filename: Line: 1384)
Over and over and over for 15gb, lol.