Please don't take the assistance being offered as negativity, personally I'm only attempting to assist with what my experience tells me to follow. I am more than happy to bow out of further assistance, if that is the avenue you would prefer. Could we review with you, your registry screenshots to compare with what my system shows, Windows 10 Pro x 64 version 21H2 build 19044.1889? Please review the below linked article if you haven't already.
https://answers.microsoft.com/en-us/windows/forum/all/unable-to-edit-order-of/f8801f07-3da8-47bf-b18a-cfdeeac7de71
As stated earlier, Windows and Microsoft are the basic issues here, that being, the way these entries are structured in the registry by the OS, other software that use overlays will compete for the entries. One Drive is a major offender. I do not have One Drive installed on any of my systems IMA. If Norton overlays are disabled the system shouldn't attempt to use those overlay entries. I do not see any entries related to Norton with my backup overlays disabled. Here are the locations for BOTH Windows 10 registry locations for overlays. What if anything am I missing?
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\ShellIconOverlayIdentifiers
2nd location: Is for 32 bit apps running in a 64 bit environment.
Here are what my registry entries look like on Windows 10 Pro x 64 version 21H2 build 19044.1889

There is only 1 entry in each of the three locations your initial post outlined.

Please have a look on your system in the following registry location: There are no entries there related to Norton as well.
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders\Backup

Why would I bother to suggest looking / scanning for malware in the registry? Also please review this articles.
https://answers.microsoft.com/en-us/protect/forum/all/malware-in-registry-keys-should-i-delete/05e97c0d-791f-4837-9609-b5d3894ccd70
https://www.bleepingcomputer.com/news/security/new-stealthy-darkwatchman-malware-hides-in-the-windows-registry/
SA