From the article:
"Road teams in the NFL are 41-37 this season. If you take out the two London games — the Jaguars were the designated home team in one and the road team in the other — it's 40-36.
The only time in recent history that NFL home teams finished with a losing record, it came with an asterisk. In 2020, when the NFL played in front of empty or partially full stadiums during the COVID-19 pandemic, home teams went 127-128-1. It was a weird year.
But it signaled a shift. Home-field advantage had dipped in 2019, with home teams winning 52% of the time. That was the lowest mark since 1972,
according to SportsOddsHistory.com. Even if 2020 was strange, in 2021 home teams won at just a 51.1% rate. It rebounded in 2022 to a 56.7% winning percentage for home teams, but has disappeared again in 2023. It looks like 2022 was the recent outlier."