If you are a android user that thinks the only source of apps is google play store, you aren't a real android user

The meme didn't mention the play store, anyone actually concerned with this stuff likely also is savvy enough to install apps without the play store.

You can still install it from fdroid or github. And there's an alternative called PersonalDNSFilter if you really wanted an app from the play store.

You can get it off f-droid

Lol me who just installed nextDNS from the play store