I already said it and I'll say it again, the reason Thor becoming more fun-and-jockey in Ragnarok worked is because Ragnarok actually handled the balance between humor and seriousness correctly. Thor was sometimes ridiculous but he wasn't a complete joke who suddenly became a punching bad for the movie's jokes just to make fun of him like "Oh look, he's supposed to be a dignified god but we make him ridiculous just to deconstruct him, lol". The movie knew how to make things serious and keep them serious when it was needed and Hela was dark but had a theatrical side and dark humor that fit the rest
L&T not only made Thor more ridiculous than epic, it didn't know how to handle its humor and balance it correctly. No, showing Thor failling at producing an epic speech to the Asgardians and turning him into a joke while children have been abducted by a mass murderer is not funny nor good. No, deciding that Jane should focus more on finding a catchphrase instead of focusing on something more serious, like (I don't know) her cancer is not a good idea. No, giving her powers because her boyfriend wanted to protect her and not because she was worthy on her own wasn't good either. No, making Thor look more ridiculous, showing him beingt flustered like a clumsy teenager, failing at making a speech and turning a scene about rescuing abducted children into a joke, etc, wasn't a good idea (and don't talk about deconstructing him, deconstruction is NOT some perfect technique that instantly makes everything good, deep and clever, it can be badly handled, just look at SW VIII which had both excellent and shitty stuff at the same time).
That's the Endgame Thor problem again, taking something that should be treated seriously, or at least with limited humor only, and turning it into a complete joke just because "serious and dark are bad, humor and jokes are good".
I don't think the movie was doggshit like Dale, it was actually entertaining in many ways but I also definitely agree that it wasn't a good movie, it was meh at best and it was too jokey. And Gorr shouldn't have been in the movie, this antagonist is way too dark and monstruous for a plot like this, they should have gone for a villain that could have been made lighter in tone without completely destroying seriousness in the movie, like Amora.