On average throughout the whole season, I think it's impossible to deny McLaren has been the outright best car, unless you're deluded. Since Monza though, things have been different. I don't think there's any significant advantage anymore. Especially at Monza, Max was never going to lose that race.
And season-wide I do keep track of some metrics at :
https://f1insightshub.com/season_summary
RedBull, even on average throughout the entire season, has been the second best car and quite comfortably actually. Especially on qualifying.
The Performance gaps you see there are calculated by considering only the highest scoring driver of each session for each team, because I am trying to evaluate the peak performance of the car. An average of both drivers wouldn't reflect that.
For reference, Mercedes and Ferrari look quite a bit worse compared to McLaren (obviously) and RedBull :
