It seems that the integrated CR3 file viewer cannot display EXIF data.
Steps to reproduce:
- Right-click on a CR3 file and select "View in Directory Opus"
- Right-click on the image and select "Show Information"
- Notice that only the picture size and camera model name is displayed
Sample CR3 files can be downloaded from the Canon R or R6's sample gallery on dpreview.com
Note that EXIF data is present in these files (verified in Canon's Digital Photo Professional 4)