If I recommend some software to someone, most normies I know would directly go on to youtube and check some guy using and reviewing a software. The “official website” wouldn’t even cross their mind.
In this day and age if a random user really wants something, they have a miriad of options to see what they’re about to use. Forums, Youtube, blog posts and so on.
If a user doesn’t even bother a bare , they’re better off not downloading random executables from the internet.
The website isn’t end all, be all of how users find a software demos. You seem to think a single website is enough for users to make their choices these days. It isn’t the 90s.
Probably sharing from the fdroid app itself. It tends to link to its own repo with package name, even if they are from a different repo.