Why do people use the Google Play Store search engine?

Why do people use the Google Play Store search engine?
It's got to be just about the worst search engine in the world.

But people use it, right?
Why?

Why don't people use a far better search engine that actually finds apps
based on extremely powerful comprehensive search criteria & which
efficiently filters apps based on equally powerful vast filtering criteria?

Why do people use just about the dumbest possible search engine instead?

I don't get it.
Is it because that's all they know?

Why can't they install what I consider the best Android app ever written?
 <https://skyica.com/appfinder/get/>

What's wrong with people that they use the worst search & filters possible?
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Other great apps are NetGuard, FairEmail, Aurora, Orenda, Etar,
Muntashirakon, Nova (last good version), PulseSMS (last good version), etc.