Multiverse and Friends (season 19-present)

Multiverse and Friends is a 2020 American-Canadian show created by Fred Dungles and distributed by Warner Bros. The show is based on the video game Multiverse. Created to rival The Simpsons and Family Guy, it became more of its own thing. Like Teen Titans Go!, the show takes a more comedic approach to the Multiverse franchise and makes it an adult animated sitcom with various franchises, including the ones for kids. While the first eight seasons and seasons 14-16 were well-received, seasons 9-12 being universally panned and seasons 13, 17 and 18 receiving mixed-to-positive reception, the show later took a second massive nosedive in quality since season 19 and it's currently universally panned and this decline is also regarded as one of the worst examples of seasonal rot and flanderization.

Why It Doesn't Have Friends Anymore

 * 1) Much like seasons 9-12 of the show but probably worse, the core problem with these seasons is that they lack the charm and cleverness of the first 8 seasons, seasons 14-16 and to some extent, 13, 17 and even 18. In one of the biggest examples of negative-180's in television, the writing was downgraded again from funny, clever, amazing, unique, serious, awesome to absolutely atrocious, catastrophic, lame, nonsensical, indolent, stale, repetitive, inconsistent, lackluster and so on, to the point it's nearly irredeemable.
 * 1
 * 1) All of the characters are heavily flanderized and are even worse than seasons 9-12.
 * 2) Anne Boonchuy (Amphibia) suffers from the absolute worst flanderization of the entire show and possibly one of the worst flanderizations of all time, as she went from a girl who was initially rebellious and self-centered but later getting a massive character development that made her incredibly likeable into an abusive, malicious, idiotic, bratty, short-tempered, gullible, egotistical, selfish, rude, moronic and cruel jerk who causes a lot of misery to the people close to her and never cares about her best friends (one day she even said if she would be asked to sacrifice Sasha and Marcy for fun, she would have accepted it) and is no different that Peter Griffin's flanderization. In addition, she became more of an alcoholic person who owuld often drink beer (even when driving) and often insults the crew when drunk.