You'd probably be surprised...
I currently have the R8 in my possession (I don't know yet if I'll be keeping it, I also have an RP). I also own the original R6, which has been my main camera for the past 4,5 years and still is.
The R8 has the same sensor, image processor and autofocus as the R6 Mark II.
I see a slightly smaller EVF, a smaller battery, no IBIS, a smaller hand grip, one SD card slot, and it's missing the rear dial. That's pretty much it. How many of these missing features will affect the camera's abilities to photograph?
The camera responds and focuses as quickly as the R6, allows me most of the same controls and behaves as predictably as the R6.
No, there's no mechanical shutter, just a 6fps EFCS, which may not be relevant for many, many users, myself included.
There's a small buffer but, since I'm not shooting bursts, it's irrelevant.
It works, it gets the shot. In the past, I planned on getting a second R6, to have matching camera bodies, but not anymore. I already skipped buying a second R6, the R6 Mark II, and looks like I'll be skipping the R6 Mark III as well.
Not only the R8 encroached one unit of a R6-series camera to me, it may actually replace it.
No, I'm not picking it as main camera, but it's still replacing one acquisition.
The R8 has basic weather sealing with tightly assembled materials, similar to that of the RP, 6D Mark II, 90D, 80D and other cameras.
Wouldn't the same happen to the R5, if it had auto-standby off as well?
I usually keep my RP on top of the desk all week, to photograph the cats. It's always turned on but I allow it to sleep. The battery lasts well over a week, that way. After work, usually I don't charge the battery that is inside the RP, I just put it to personal use as is, and charge it just before leaving for a new assignment.