I have Mlem (also TestFlight) but found it lacking in most features. I mostly use the wefwef.app as a PWA and it’s pretty good despite some bugs or ux decisions I disagree with such as not being able to search for posts/comments/communities/users at the same time (and url searches not working)
It’s definitely giving me Disney movie main character enters The Inspiring AreaTM for the first time. Or any children’s action/adventure movie. It’s giving whimsy + nature/magic or whimsy + futuristic/factory or campy ceremony (Graduation? Wedding?)