xG isn't meant to take any of that into consideration. Used as intended, xG over an extended period of time is useful. As has been posted previously, we're currently 'breaking' football, time will tell if it's sustainable. Will be great if it is.
I don't really think that's the case. We just currently have the team and the set up to score the type of goals that will only work if you have really good players to do it.
If you had, I dunno, Ronaldo, Le Tissier, Beckham and Ibrahimovic in your team and your sole tactic was to try and make space for them around 25 yards out and just tell them to shoot as often as possible, you haven't broken any metrics, you've just got players who are better than most are at the thing you want them to do.
Rogers is supposedly the player most "over-performing" his xG this season, the last couple of seasons it was Haaland and Foden. They weren't breaking football, they're just better than most other footballers at scoring goals, like Rogers is.