I’m having to grow all my succulents in a cabinet this year because of lack of sunlight at my current apartment, and my lithops are pretty thrown off by the whole situation. I lost one (the sunken one) I’ve been afraid to unpot everybody to remove, but the rest seem to be doing alright. Two of the dorothea(?) didn’t split at all this year. At some point I plan to separate by species because some definitely seem to want water more than others.
I like ugly plants too! One of the many casualties of Reddit’s demise is the lithops subreddit. I suggest checking it out while you can because it is a wealth of knowledge!