Given that Max has struggled with the car over parts of the last year, I don't think that the car is only "built around him". I think the car is built in a very specific way that Newey's team decided years ago, and Max is able to drive with it way better than any other of his teammates.

Some of it is also that Max has had years driving the car that has a similar philosophy as they are evolutions of that Newey concept while some of his teammates are lucky if they had a full season. Very few drivers can just swap teams and be immediately world class level, see Lewis and Carlos this year, both of whom have masses of experience, some of Max's teammates have been comparative rookies or never were that fast in the first place (Checo).

It’s probably because that’s the only setup they can build to make the RB fast and Max can drive that setup to the max. The RB is lacking in pure engine power and aero efficiency. If they make a less pointy car that’s more neutral, and more friendly to drivers like Lawson and Yuki, they probably would be competing in the midfield.

My thoughts exactly. I’d like to see a similar list for all drivers and teams. To see if there are any other drivers with huge differences in points over a team mate. If the majority are similar in points then surely this is more to do with the RB car being suited to Max and the second driver just not being able to drive the way they would.