Microsoft removing EEEU sharing permissions

Microsoft have announced that they will be removing the permission assigned to the "Everyone Except External Users" group (EEEU) from the OneDrive site collection and default document library:

https://mc.merill.net/message/MC1013464

This will happen between 10 April 2025 and 30 September 2025.

My understanding is that this is to avoid the risk of over-sharing and for most people it will have minimal impact. Generally, internal users don't have read access to each other's OneDrive content.

I've checked a few OneDrive accounts in different tenants. I have seen the EEEU group granted access at the OneDrive site collection level, but not at the library level. I've also seen instances where the EEEU group is not present at either the site collection or library level.

Back in 2020, there was a message centre update MC225111 "Microsoft Removes EEEU Permission from OneDrive for Business Accounts"

Is this just a final clean-up of OneDrive sites that still have this permission?