Also at this point I am curious about if there are teams that made more than 11 in the team ratings for the flow.
I think this is pretty hard to achieve. I just ran trough some games from the top NT level.
(45833) 10.0 flow Lithuania
(45775) 9.3 flow Portugal
(45776) 9.6 flow Lithuania
These three games are from last seasons semi finals and final (euro championship).
And from season 40 (world championship).
(44588) Spain vs. China and both are under 10.0
(44543) Spain vs. Taiwan and both are at 9.6
We have here three of the best NTs with the flow stays still under 10.0.
In my point of view, you can only achive a high 10 flow, if you have PA on all five players:
(46321) my swedish team had a 10.3 and Austria a 10.0.
I think it is possible to push the flow rating even higher, because Sweden didn't play with the best possible "flow line up". A player was injured and another one still gets PA training.
I have one last point.
(99545969) that's the BBB final of two seasons ago. The flow is a 10.3. What makes it really interesting is that Tehran played Princeton. And according to an old BB post, Princeton is the tactic, which relies the most on PA and flow. And even here, a flow of 11 wasn't reached.