Thanks, that's a great resource!
For those like me who are not familiar with the itch.io client, it seems like the easiest way to access this collection is to add a new tab in the itch client, and paste the URL. I tried finding it via browsing the store etc. but there's no builtin way to search for public collections it seems.
An alternative is to follow SilentManifesto and then you should see their collection in your feed.