LOL. You must've been watching a different Dark than the one I did.
Time travel is a difficult trope to do well, because there is so much potential for paradoxes and other confusion. I always find myself going "So, if they could travel through time, couldn't they just do X?"
In Dark, it started with a good premise, but the last season was a total wreck. It felt slapped together, like they had to come up with an ending in a hurry.
I believe the writers actually wrote much of the story line for the entire show before filming the first season. As such, it’s probably one the most internally consistent time travel stories. That said, I do think season 3 gets bogged down by all of the exposition needed for the story to actually make any sense.
I believe Netflix actually has a website with the timelines for each character so you don’t get confused. IIIRC you can tell it what episode you’re on so you won’t get any spoilers.