Long-time immich user here, similar problem. The issue (for now) is that only the owner of the media has write access. With partner sharing, all you can do is read the media (and add them to albums).

What I do for now with "trash media" (e.g. photos of receipts and other stuff that one snaps pics of for practical reasons and then forgets): I add my partner's trash to an album named "please delete". I periodically ask them to go through it and remove anything they want to keep, then have them select and delete everything in that album in batch.

Why this may not be practical for you, OP: you have two "trash producers", so you'd have to keep a "trash" album for each of them (and sort trash media correctly). This is tedious work and error-prone: if you have only one pic in you "trash" album that your account does not own, selecting and deleting everything will fail, sending you on a hunt for the one misclassified picture in a batch of >200...

What immich may do about this in the future, as according to their roadmap: in the past, they were planning to add "more granular permissions controls". Right now, they've renamed that to

User groups: Manage groups of users and share albums with a group

I hope this will include permissions management as well.

Wither way, the feature is likely to come with a greater overhaul of partner sharing. Partner sharing, as of now, is partly "broken" due to past design decisions: you can't

• write to your partner's files
• share facial recognition data: each one needs to classify people in their pictures individually (e.g. both need to tag "Uncle Fred" individually in their own accounts)
• share memories: only pictures owned by you will show up in memories, not your partner's

And before anybody asks: no, there's no ETA...

Soon

Really a long time coming pain point is comfortably sharing between family. I think the new workflows will be the way eventually. I plan on using it to auto add pictures with the recognised faces of family members to a "Family Photos" album as they are uploaded, and allow everything else to stay unshared by default for each user.

Apart from this partner sharing, do you know of another feature to help managing the photos of the family? For example, my partner and me upload a lot of photos of our son but she can't access my photos neither I hers. We can share one album but we need to manually select the photos we want to share, which are most of them.

Sounds like a request for immich 😉

I thought you as admin have delete access, you might just have to share the folder in "partners"?

Hmm theoretically, you could spin up a second Immich and mount the folders in there as external libraries with write permissions 🤔

This is just an idea which came to mind reading your post. But I would assume that messes with the metadata stored in your primary Immich instance or rather its DB. So probably not the best idea in hindsight. Also even easier approach to achieve this would be using a simple imager viewer tool directly on the filesystem 😅