As for the size of the bundle, that is the exact reason why we need a way to see all owned items in one place. It is beyond tedious to have to clunkily navigate the bundle one page at a time or search by name when we don't even have a simple way to see a list of what is in the bundle - especially when for whatever reason the site makes no distinction between what has already been purchased and what hasn't. Games that are purchased without an account have nothing to do with accounts not displaying games that have been purchased.
I don't feel a need to download and install every single game - I will do that one at a time as I discover them and try them out - but a way to browse the games I've purchased so I can decide what to try is sorely needed. There are some third party projects that have taken on indexing the bundle such as: https://randombundlegame.com and that's great, but there is no reason why it can't be integrated on itch.
Sorry to take such an aggressive tone, I'm just frustrated from trying to use what I feel should be basic features inherent to any game distribution and management site/app.