Canon EOS R Advanced User's Manual page 175

You cannot use infrared remote control units such as Remote Controller
RC-6.
If focusing is not possible with AF, focus manually before shooting
o
(p.281).
Auto power off time may be extended when the camera is set for remote
o
shooting.
The remote control can also be used for movie shooting (p.245).
o
4
Take the picture.
By pressing the <
z
remote control, you can also autofocus.
To shoot, press the release button on
z
the remote control.
For detailed shooting instructions,
z
refer to the BR-E1 instruction
manual.
Remote Control Shooting
> button on the
2
175