Page four of the wrench icon. Power saving. Disable auto power off. Then connect camera to canon Utility, and it won't shut off. The M50 doesn't have to be in selfie mode for it to not shut off.
I realize this is an old post, but you're wrong. The M50 can stay on longer than the 30 minute preset. It's accomplished through applications that are freely available, as well as the basic EOS Utility; and no, staying on beyond 30 minutes does not t...