Phase 4 was a mess, i think its too early to really say the same for phase 5 but i'd say 2 out of the 3 projects have been disasters (Quantumania and Secret Invasion), while GotG altho great felt like a leftover from the earlier phases.
It fees like Marvel is undergoing an accelerated version of what happened with Star Wars where they are now undermining previously well-liked characters. Came away from Quantum and SI liking Ant-Man and Nick Fury less than i did before and not wanting to see either character again.
Marvel actually does continue to introduce new and compelling characters but feels like they are mostly stuck as supporting characters in mediocre movies or in lesser D+ series. Shang-Chi and crew are the exception imo.
Feels like we are almost returning to pre-mcu status where Batman and Spidey are the only guaranteed sure-fire hits and everything else is a roll of the dice.