It would be interesting to see what the life expectancy of a promoted club entering the premier league is like now compared to 30, 20, 10 years ago.
I bet it is going down despite the likes of Brentford and Brighton doing ok for a couple of seasons. They are all just one bad season away from the drop as proved recently by teams like Burnley and Leicester who we thought had got themselves bedded in.
It‘s all about money and even those with a lot of money are not finding it easy.
I think the current premier league bottom three are down already.
Not sure if you want from the season starting in 2022 or 2023, so I'll do both.
Relegated teams and how long they'd been in the league:
1992/93 - Crystal Palace (1 season), Middlesbrough (1 season), Nottingham Forest (16 seasons).
1993/94 - Sheffield United (4 seasons, Oldham (3 seasons) and Swindon (1 season).
2002/03 - Sunderland (4 seasons), West Ham (10 seasons), West Brom (1 season).
2003/04 - Wolves (1 season), Leicester (1 season) and Leeds (14 seasons).
2012/13 - Wigan (8 seasons), Reading (1 season), QPR (2 seasons).
2013/14 - Norwich (3 seasons), Fulham (13 seasons), Cardiff (1 season).
2022/23 - Leicester (9 seasons) , Leeds (3 seasons), Southampton (11 seasons)
It's only 10 year snapshots, but it seems pretty similar. Usually a few teams that have only fairly recently arrived and the odd long established team.
Last season was unusual in having two long established teams coming down and no newly promoted teams.