Thus far I have not had an issue with the Quebec vaccine passport. Even if the information contained therein has my male name, not one time have I had a problem.
Perhaps for those who inspect it's because they don't look properly or simply that encountering a trans person in 2021 is hardly a surprise. Either way I am not perturbed and would be ready to just explain that I have not yet changed my gender marker and leave it at that.
We should never be afraid of these types of situations but I am not one to talk as a few years ago they would still have been a source of stress.