No, but people don’t generally want to browse for "an open source tool that is an alternative to some random thing", they want to find "an alternative to Photoshop". As far as I can tell there's no search at all, maybe that's just on mobile?
No search on desktop either. I also found this a very strange list, but it's short and probably limited to what the author uses for now. No Gimp, no Inkscape, no Blender. But Discord of all things is there, you're not even allowed to use third party-software like WeeChat to connect. Nothing open about that platform. And where's Mutt or Thunderbird?