Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 527)

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One-Shot AF release priority
You can specify whether to prioritize focus or release timing for One-Shot AF (except when
shooting with Touch Shutter).
[ ] Focus
The picture will not be taken until focus is achieved. Useful when you want to achieve
focus before capturing the image.
[ ] Release
Prioritizes shutter release over focus. Useful when capturing the decisive moment is
most important.
Note that the camera shoots whether or not the subject is in focus.
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