Canon EOS R3 Advanced User's Manual page 305

Customizing Information in the Viewfinder
1.
Select [
2.
Select [VF info/toggle settings].
3.
Select screens.
Turn the <
viewfinder.
For information you prefer not to display, press <
checkmark [ ].
To edit the screen, press the <
: Shooting info. disp.].
> dial to select information screens to show in the
305
> to clear the
> button.