I tested a whole heap of noise-cancelling headphones last year. All in the £200-400 price range, probably about 20.
My final shootout was between the Sony wh1000 xm3 and the Jabra 85h.
Really close competition, the Sony had better noise isolation, but the sound signature of the Jabra was just a bit clearer, with really rich bass.
They leak zero noise, and the noise cancelling is pretty much level with anything you can get.
Although, I use a set of Open-back Phillips X2HR headphones for gaming. They’re astounding. Anyone in the same room as you can hear everything, but they make shell casings and footsteps sound much more real and distant. Open back Vs Closed back is like being in big room, or in a small studio.