Shutter Count is not readily available. If Canon is still supporting and servicing the M50, then send it in for a cleaning and checkout. Request a shutter count and it should be provided.
That is how it is done with DSLRs. The shutter count metric on a mirrorless camera is almost meaningless, except the M series may be the exception. I do no know that the camera is capable of taking photos without firing the mechanical shutter, and the same is true on a DSLR.
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