Doesn't Apple REQUIRE a subscription on most apps? Like haven't there been multiple devs talking about how Apple rejects "free" apps if they "don't seem to have

Doesn't Apple REQUIRE a subscription on most apps? Like haven't there been multiple devs talking about how Apple rejects "free" apps if they "don't seem to have a unique purpose" or whatever, and you need to have either an up-front cost or a subscription model for Apple to accept it?