I don't have the chance to have the new Canon EOS R5 C in hand at least for now but looks like there is a bad design choice with the Photo/Off/Video switch. This is definitely a very useful feature but not sure if this is the best implementation, see the switch in the image below.
In order to switch from Photo to Video or Video to Photo, the camera has to turn off and then on again, which would take at least few seconds for it to reboot. For a professional oriented camera, these few seconds may not be acceptable for some.
Alternatively, Canon could have changed the sequence as Off --> Video --> Photo so that one wouldn't need to turn the camera off and on to switch between shooting modes.
A different version of this switch already appeared in other cameras such as the Sony A7 IV (Stills/Video/S&Q Mode switch) but that has a different approach where this mode switch is de-coupled from the On/Off switch and the mode switching is instant.
Again, once the real life reviews of the R5 C are out, we can find out exactly how long it takes to switch between these modes. May be it is nothing to complain about but still think this is not the ideal implementation. What do you think, let us know? Even better, if anybody that already has the camera is reading this, please share your experience with us.
Update: Kai W in his R5 C review on Youtube confirms that it takes a whopping 8 seconds to switch between Photo and Video modes!