Before SpaceX it would have been diapers all the time
There were no spacecraft with toilets on board before the Space Shuttle, and there hasn't been one since. Soyuz has never had a toilet. Arguably, this is a return to standard space plumbing, although it sounds like SpaceX has already fixed the problem for future flights.
As someone else pointed out, Boeing didn't even put a toilet in Starliner, although maybe that's because they never expected it to fly.