My guess would be no, unless Canon made the radio trigger. I have a vague recollection of trying an ST-E3-RT on top of a PocketWizard FlexTT5 and the Canon trigger didn't work.
I have an M3 with the EVF. Looking to upgrade to the M6II.
The Canon EVFs use a row of contacts at the front of the hot shoe mount for communication. Ken Rockwell has a nice image of the bottom of the EVF’s hot shoe mount, https://kenrockwell.com/canon/eos-m/evf-dc2.htm. The pins extend forward of the flash mount. It’s doubtful that any device passes these through.