I'm speaking about historically, not really about movies, and yes, in general. Spidey, Thor, and Panther are the exceptions.
Black Widow, Shang-Chi, Eternals, Doctor Strange are Marvel's D-list characters. Loki might be a C-lister, as are Falcon, Captain/Ms. Marvel, Winter Soldier, Moon Knight, Wanda, Vizh, Hawkeye, and Shulkie.
Phase 5 seems a lot worse.