This is a common occurrence for me since I don’t have much time to play. I often get about halfway through and then stop playing for months. When I come back to it I always want to start from the beginning and then the cycle happens again.
One example for me is Fallout 4
I just started a new playthrough a day ago, and as I type DOS2 is loading.
This time i’ve gotten all my ducks in a row I think - the right mods (most of which are in the steam official “gift bag” but a few from workshop - extended crafting, new traits, and most of all I love the sprint-outside-of-combat and the mod where I can take all party members (6, there is a mod for 8 i think but 6 is full for me)
Decided to take it slow and enjoy myself.
All that said, considering I already got to one of the escape options from fort joy in like 5 hours playtime >!the kid with the boat in the prison !