I don't know. This camera is completely overpriced for what it offers and should be rightfully squashed. If we just allow companies to do whatever they want without outcry then 1/3 of the current Canons would not have 24p in some of their modes..
The A7c lacks dials, buttons, and joystick compared to the A7III or even A6600, it does not get the UI nor full touch, it has a borderline use-less EVF, apparently really bad IBIS and still comes in at only $200 less than the A7III. The only things it has to offer which are great at the very least are the battery, excellent sensor, and the AF performance (hopefully, though there might be processing limits there too?).
Those 3 things are better or equal (AF has to be seen in real world) to the RP and they are important, but the RP has good enough IQ and spare batteries are not the end of the world, but it will be much more usable with large lenses or people with glasses and it costs half the price. Canon's bigger problem is the lack of small lenses, especially zooms.