Extensions, it is an important part of the GNOME ecosystem and community, but the exploration of extensions is done rather poorly, a lot of cool GNOME extensions I learned about from Reddit, OMG! Ubuntu! and YouTube, but not from GNOME Extensions website,
because On the GNOME Extensions is very unfriendly design, 80% of extensions do not have icons, screenshots or videos, the site has just a search and a list of extensions, which says little about, you can’t explore GNOME extensions like apps on Flathub or Firefox Extensions for example.
So we have to do something with this situation, there GNOME Extensions Rebooted Initiative, apparently it was abandoned 
I have a couple of ideas on how to improve the exploration of GNOME extensions.
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Priority on the latest version
Regardless of popularity and rating should show only the extensions for the latest version of GNOME or that are available for the version of GNOME that have user. -
Categories
Like Editor’s Choice, Recently Updated, Appearance, Functionality etc. So extensions can be explored/searched by its categories, and you would also be able to find out about newly available and recently updated extensions. -
Icons
There are very few extensions that have icons, so we need to somehow encourage extensions that have icons. -
Showcase
Currently, on the GNOME Extensions website, devs can add only one screenshot, is super very limiting,
it is very necessary to be possible to show multiple screenshots, videos/gifs in carousel. -
Donations
It should be possible to easily support developers of extensions (like in Flathub). -
GNOME Circle (maybe)
The same as with the apps, in GNOME Circle could be extensions, that follow GNOME HIG and all GNOME Circle criteria.