I see this is a common user requested action to add a bundle to the library using a button.  Please add this button to add all items from the Bundle to the Library.  The Bundle interface is not filterable :(

I would quite like this

Agreed. I feel like I'm being punished for buying games.

I can't easily find the bundle link in the Itch App, and if I accidentally scroll past a game to add to the library, it's as if I've never bought it.

If library clutter is a problem for people, just allow users to sort by popularity/rating or something; Or don't buy games.

Yes. This. Please. All of this. I just want to see/sort/filter all of my games. Can we also filter games/assets/books/whatever else, please? I just really want a list of all the games I own. Please? 

I am fine with everything as is ... except that I am allowed to re-buy bundled games I already own.
I want to explore, but if I am forced to check each title by hand against my existing library, then I am rather browsing somewhere else!

I would chargeback if it wasn't a donaton.  This system is insane, and guarantees that none of the bundled work actually sees the light of day.  I have bought two bundles, I supposedly own thousands of games, but can't see or install any of them in the app without doing hours of work on the website which I will never do.  This is lazy and borderline unethical on itch's part, which is a lol given the fundraising aspect.

This feature definitely needs to return.