I suppose my point is it's all guesswork and the CL is no way to compare. Im not so sure on Bayern, if they were in PL. Maybe it's a personal bias, but I dont think they would know what hit them in terms of tough games week after week
What makes the PL hard for me is 2 things.
1) The equality of the league. The sides at the bottom, or bottom half are still good. They have big budgets, like top 40, even top 30 in Europe size budgets. They can all buy good quality players. So theres no easy games. No 6-8 gimme teams who are like Huddersfield a few years back. Most league have at least 6 to 8 Huddersfield.
Even the sides who come up, they have a squad who will know how to win, battle hardened having come through a 46 game season, and then they get this huge budget where they can go and add up to 100m in players. So theres no respite. For clubs like us, it means you cant really ever relax and take 2-3 years to sacrifice results to slowly built a young squad.
2- Allied to this, you get very varied styles and sides who can pull them off well. You have Burnley, or peak Sheffield United, very well drilled, big, physical, nightmare of set plays. At the other end you have a Brighton, who have great ball retention, attacking moves etc. The pressing may not be as high as the Bundesliga, but the physicality is there.
For a coach, you can implement your style and buy players to fit the brief. So it's a real slog. At every level really.
We almost have 5 Bayerns/PSGs etc and Spurs are close to making it a 6th. Then with clubs like ourselves, Wolves to a degree Villa you have big clubs who are well supported. You have a Leicester who are like a very well run German club, who would have a budget that would be 4/5th in the Bundesliga but very well run.
So yes the PL at every level is very hard.