Share tags when following user

[Gandalf-the-Blue]

Idea Overview
My partner and I wanted to use this to build a watchlist together. I built the watchlist by tagging certain media with a tag X.
When my partner with their account follows me on Watcharr, the tag X should be visible(currently not shared) and they should be able to add items to that tag too.

Is your feature request related to a problem? Please describe.
Is there an alternate way to have a watchlist built which two people can edit and see at the same time?

Describe the solution you'd like
When my partner with their account follows me on Watcharr, the tag X should be visible(currently not shared) and they should be able to add items to that tag too.

Describe alternatives you've considered
NA

Additional context
NA