Since 2019, we're 8-14 on the road, for a winning percentage of 36.3%
Since 2019, we're 9-21 at home, for a winning percentage of 30% (including "neutral" sites)
Duke was our last major home win, on Oct 8 2022 (assuming the listing I have is correct). Before that, to get a FBS win at Bobby Dodd, it's Duke again in 2020.
I haven't done a significance test, but
- We definitely don't have a home field ADVANTAGE, but I don't think it's clear that there's a "disadvantage". We're 6% worse at home.
- I'd say "not being a good team" is the bigger factor, above and beyond home field and the crowd.
This didn't take long to pull up, though:
https://nique.net/sports/2023/01/27/home-football-game-attendance-at-all-time-low/
Simple answer--whatever you might want to say about Johnson, people showed up and we had a decent record. TFG slashed both attendance and wins. The hole we're in was dug by TFG. We're not out of the hole.
It's going to be very hard to win back the fans that left and get them in the seats. Mostly, new generations of fans need to be cultivated from scratch. Key has a massive turnaround job, and he's got to make hard decisions.