The common advice[0] is to just write one sentence per line. I usually split at commas etc as well. Then use editor soft wrapping instead of fixing a maximum line length - but if your lines get longer than the screen width that might be a sign your sentences are too complex.
[0]: anyone have a good source for this? I’m not sure where I first encountered it
[0]: anyone have a good source for this? I’m not sure where I first encountered it