Rick and Morty is a weird example, cause it feels like (with the framing the video uses) a postmodern reaction against metamodernism. Its whole shtick is building up apparent sincerity within an ironic absurdist setting and then tearing that sincerity down again in a wave of nihilism as the punchline, before promptly resetting the board to convince the audience (not necessarily the actual audience though, the imagined one you, the viewer, get to feel superior to) to try to kick the sincerity football again.