Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 283)

4.
Set [No. of exposures].
Select the number of exposures, then press the < > button.
5.
Specify the images to save.
To save all single exposures and the multiple-exposure image, select
[
All images ] and press the < > button.
To save only the multiple-exposure image, select [ Result only ] and
press the < > button.
283