I have Ryzen 7 9800X3D and I’m not even considering switching to the 9950X3D. The 9800X3D is so good that I’m waiting for its true successor, which the 9950X3D definitely isn’t.
Back in November, I upgraded from the Ryzen 7 7800X3D to the 9800X3D and I’ve been more than happy with the change.