When I was looking at new bikes last year (up to £2k not £3k) they were almost all sold with fairly ordinary wheelsets.
I was really interested in something with an intentionally tubeless-ready rim profile (Stans/WTB/Pacenti/Roval and so on) rather than full UST.
In the end I ended up with a lower-end Crave, and fortunately the stock wheels were easy-ish to convert with Gorilla tape. But when (if) I’ve destroyed them I’ll be looking at one of the tubeless-ready rims for a bit more confidence!