I followed a similar trajectory. I was subscribed to all kinds of NFL stuff and was in Fantasy Leagues. Besides the Bills continually sucking, my enjoyment of watching games in general got sapped about 5ish years ago. I gave up the NFL altogether.
The Bills success and the intrigue of JA drew me back to the NFL last season, with some caution. I even went to a couple games.
I still see lots of issues that sour me towards the games, but I’m back invested in the Bills again, but not the league like I used to be.