I can find it on Droidify no problem and after reading your comment, I also tried on F-droid app and I can see it there as well. Maybe you don’t have it configured properly.
It comes up if you type “oss” and look down, as “OSS Document Scanner.” But if you go past the oss like “oss sc-” it says it can’t be found (because you omitted “document”). My bet is this explains why he can’t find it.
I can find it on Droidify no problem and after reading your comment, I also tried on F-droid app and I can see it there as well. Maybe you don’t have it configured properly.
It comes up if you type “oss” and look down, as “OSS Document Scanner.” But if you go past the oss like “oss sc-” it says it can’t be found (because you omitted “document”). My bet is this explains why he can’t find it.