We have a single master board that the whole company feeds into. We want to speed up our work and grant Guests (clients) limited access to this, making them Assigned Contributors so that they can only see what they're tagged in.
Doing so means that all users who are not board Owners will also only have visibility to what they're tagged in, which means from a reporting level, seniors will also lose this.
We don't want to make everybody Owners as we don't want to allow them to change the set up of this heavily templated board, instead we'd prefer if Item/Subitem visibility didn't have to be inherited to all non-Owners