Hi there,
Sorry that Photoshop and Bridge is not recognizing your CR3 files from the Canon Mark IV.
We know you updated to the latest version of Photoshop and Bridge but still would like to confirm which exact version of these apps are you using? Navigate to the Help> System info menu and check the version of the apps you're working with.
Are you also getting any error message when you open a CR3 file in Photoshop or Bridge?
Please checkout this article https://helpx.adobe.com/camera-raw/kb/troubleshoot-camera-raw-photoshop-photoshop.html and let us know if that helps.
Thanks,
Akash