"Maoism" is about as real as "Dengism" is. There are people that called themselves Maoists and thought functionaries driving a minimum number of mercedes cars by year x was integral to their party's growthy. In the 60-80ies it was the same as "Daddy Xi pls send nukes" - an edgy marker of being a cool kid in the in-group that didnt necessarily tell a lot about the person's committment.
Identifying with people perceived to be critical of the USSR (at vastly different points... Mao liked Stalin) is sometimes a crutch for people self-conscious about communism and the objective need to do nasty shit to reactionaries which itself is kinda telling on how seriously you gotta take these people. That being said, the need for labels is kind of a sign of insecurity and need for identity labels as a shibboleth is generally a big tell on ideological insecurities as well. and inner-leftist handing out of labels, like calling everybody that disagrees with a voluntarist call to action an ultra is more name-calling and appeals to the room's Common Sense imo. I think. Sorry for the messy train of thought - on mobile.
TL;DR: you will know a real "maoist" when you interact with them, usually it's western leftist with hangups about needing to have show trials for every NYT editor

. In my neck of the woods they are just as impotent and insufferable as the Trots and functionally identical in their unintentional support for western imperialism(because they oppose every AES and anti-imperialist nation for not being communist enough for them).
