Dr. Strange in a cuckoo script, in a bad way.

All super-hero movies have their problems with reality as expected. That's one thing and nobody cares. However plot holes and unnecessary scenes.

A literal childish motive moves the plot.

The main villain (see, no spoilers here) uses his/her powers only when it serves the plot (ripping it apart).

Someone here wrote that propably "somewere in the multiverse there's a better version of this movie". I sincerly doubt it.