I like the idea of CC Libraries. For me, there was a bit of cognitive dissonance at first because I thought I could put assets in the CC Files. This would have been the most convenient way to add assets to my projects. I deal with hundreds, sometimes thousands of assets daily.
I opened the Creative Cloud app and noticed I could manage Libraries there. I could create a "Custom group" and then a "subgroup" to organize my assets. This was greatly appreciated, although one observation. This UI is behaving a lot like directories on a desktop computer, without the nicities of directories. In each subgroup I have thousands of assets stored. Their names are suboptimal because most are generated with a script, but I could easily find an asset if I could sort a subgroup by created / modified date instead of the default alphanumeric. This feature is sadly missing.
In the MacOS CC App, I cannot collapse subgroups or select subgroups from the breadcrumb menu. This prevents me from quickly navigating and makes the browsing experience painful because I must scroll through thousands of assets.
In any iPadOS CC App, when I navigate to the UI that allows me to select assets from the library, I am presented with a 2 up popup where assets lazyload. Here is where I would greatly appreciate sorting. The default sort of alphanumeric jumbles my assets making it hard to find one I'm looking for. Furthermore, it seems the lazyloading is broken because sometimes the assets are not sorted properly alphanumerically when I have a rather large directory. I would like to be able to sort this popup by date created / modified, last opened, size, name, kind and even be able to filter assets by tags. I would like to be able to tag assets upon import in the Adobe CC app, either on MacOS or web. I want to be able to expand this popup as well to get better previews of assets.
I noticed the web app at https://assets.adobe.com/libraries at least supports sort by last modified and some basic filtering (by type or group). The filtering is counterintuitive. If I've already grouped assets, I should be able to filter within that group, not the entire set of assets.
I realize this is a lot of asks, but so far I've found the process of organizing libraries fairly painful.