i have the same problem with mac os x 14.2.1 . I've a 10TB WD external drive and using from terminal sudo /sbin/fsck_apfs -Fy /dev/disk4s1 i had the error error: Device does not contain a valid APFS container. Container superblock is invalid. ** The container /dev/disk4s1 could not be verified completely.

I have the same problem on a WD external drive. My S.O. version is 14.2.1. Fun fact, if you connect the drive to the iPhone 15 pro you have access to all files.