Synchronisation of Tags between Nextcloud and (external) Object Storage

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Is your feature request related to a problem? Please describe.
Nextcloud uses Collaborative Tags. Object Storage uses Object Tags. But they aren't connected.

Describe the solution you'd like
Tags of files within Nextcloud that are stored on (external) Object Storage should be synced to the Object Storage's Object Tags of the respective file.

Additional context

• With this one can do automation like Dynamic Tiering in the Object Storage.
• This helps when you deal with large (GBs) files.
• When a project is completed this would allow to move files between hot and cold storage based in the Object Tags, which is a feature of Object Stores.

Start by tracing how Nextcloud Collaborative Tags are stored and how external Object Storage handles Object Tags. Define the synchronization behavior for files on external Object Storage, including updates and the object tag format. Done means the two tag systems remain synchronized and the behavior supports Object Storage automation such as dynamic tiering.