Despite having the feature set in preferences, Photo Mechanic doesn't show ingest dialog on mount of my CFExpress B cards, though it still works fine with my Compact Flash cards and old Lexar card reader. It also does not work on my laptop.
I do notice that the CF card mounts as "EOS_DIGITAL" and the CFExpress B mounts as "CFexpress B".
Photo Mechanic Version 6.0, build 7285 (fb3e520)
2017 iMac (Quad Core Intel Core i5)
macOS Ventura 13.6.7
SanDisk card reader for CFExpress B cards
Canon R1