It is occasionally slightly meta, such as when Boimler says that he refers to the era of Kirk and Spock as "the TOS era - TOS for 'Those Old Scientists.'" But it's not a parody. A parody is where the meta element is saying to the audience, "The original program is dumb/bad because X." Lower Decks never says that to its audience. What Lower Decks's meta elements (such as referring to the 2250s and 2260s as the TOS era) says to the audience is, "Dang, Star Trek is awesome, isn't it?"
I mean, it sounds to me like you just don't think a sitcom is appropriate for the Star Trek Universe. Which is a legitimate opinion! I don't agree with it, but it's a legitimate stance to take. But that doesn't make Lower Decks a mockery rather than a loving tribute.
In what way? None of the characters in the Kurtzman shows are superheroes.
I hate to tell you this, but production on Star Trek: Discovery was already underway before The Mummy was released. And Paramount was always going to want to make more ST shows if DIS was successful.
Well, it is certainly true that there is a financial incentive to produce television programs for streaming. But that was true when Star Trek was being produced for syndication and network television, too.
Lower Decks does exactly that.
