On Linux there are ways to set changed at time and created at time for files. For example:
xfs_db -c "inode <inode_number>" -c "chattr <new_change_attribute>" /dev/<device_name>
That is for chaned at on XFS.
BTRFS:
chattr --ctime="2022-01-01 12:00:00" filename
ZFS:
zfs set creation=2022-01-01T00:00:00 pool/dataset/file
Test this before large scale but these things may do setting changed...