I haven't had an NFL team since the Oilers left Houston. That's the single biggest reason I've never really glommed onto another NFL team. I've watched more Kansas football than NFL the last 10 years and I was slightly annoyed the COVID robbed us of the chance to be the first team to lose 100 games in a decade.
Another thing that killed some of my interest in the NFL was NBC buying up the rights to 6pm highlights, effectively killing off NFL Primetime in the mid 2000s
SI