Content Sharing is over-sharing

As a forever-DM, I enjoy owning as much content as I can; even if I don't intend to use it in a game, it's fun and helpful to read to get ideas.

I have:

• a Master-tier Subscription
• Created a campaign as the DM
• Enabled Content Sharing on that campaign
• Gone though Content Management and blocked everything but the core source books

When a new player joins the campaign, their character sheet can see and use spells, features, options, etc. from books that I own that are blocked in Content Management!

Quote from spamandtuna >>

The only means for hiding character options are the “Sources” and “Partnered Content” toggles in their character settings.

 Which still isn't good enough because 90% of the official content is lumped into "Expanded Rules".

Can we get official book selectors under that? Tashas/Xanathars yes, Strixhaven no?