Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 152)

3.
Set [HDR assist disp: shooting].
On the screen, converted images are displayed that resemble how the
images would look on an HDR display device.
Select [ Exposure prior. (mid-tones) ] or [ Tones prior. (highlights) ].
[ ] Exposure prior. (mid-tones)
Provides reference display that emphasizes exposure of subjects (such
as people) with intermediate brightness.
[ ] Tones prior. (highlights)
Provides reference display that emphasizes gradation of bright subjects
(such as the sky).
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