two questions:
1) is sound quality REALLY important to you?
2) how many apple devices are you using?

because while the XM4s offer really great sound (9.5/10) and great noise cancellation mode, the AirPods Pro offer really good sound (8.5/10) but has the best transparency mode on the market, spatial audio (aka virtual surround sound / Dolby Atmos), plus easy pairing and switching with all your apple devices

so pick the XM4s if:
1 - the most important thing to you is great sound. no other feature even comes close
2 - you would use noise cancellation mode more than transparency mode (ie. using them indoors while being mostly stationary)
3 - you will mainly use it with a single apple device

and pick the AirPods Pro if:
1 - you like great sound, but its not a hard requirement (ie. really good sound but not the best is acceptable)
2 - you would use tranparency mode over noise cancellation mode (ie. using them outdoors while out and about)
3 - you regularly use two or more apple devices (ie. phone, watch, Mac)
4 - you watch a lot TV shows and Movies using apps that support Dolby Atmos
Machines discounting the older model without Magsafe but TMT and senQ is discounting the Magsafe model:
[attachmentid=11033451]