Depends on the person/relationship and the balance of good vs bad interactions.

I have ghosted family because the only real interactions for several years was the obligated holiday visits and they always involved being stressed before and after due to conflicts between different people. Nothing direct or blowing up into arguments, just a lot of small slights that added up over the years. There wasn't enough benefits for the negatives, and obligated fun isn't fun.

Actual direct conflict would have ended it years prior, because relationships are an ongoing thing and if they sour then they don't need to continue. Unless there is some other thing like ending it would cut off access to someone else, retaining a relationship that is a net negative is going to be an unnecessary strain on mental health.

If things were bad and they were obviously trying to do better then maybe it would be worth keeping a relationship for long term goals, but there is still a limit on how many chances they get.