Marxism is a theory and borderline vision. Hence it is very subjective to different interpretations.
Not really subjective, you are supposed to analyze and adapt the ideas to the material conditions of each country. Which is why Marxism-Leninism and Maoism tend be more widely adopted by the Global South as the material conditions that gave rise to the Soviet Union and the PRC are similar, which is that of being undeveloped or under-development, being exploited by the Global North, namely the traditional european colonial powers(and now the US) and even so, it shouldn't be tit for tat but further refined as the material conditions of, lets say, Bolivia aren't the same as that of Haiti, just like a Marxist movement in the US wouldn't and shouldn't be like that of China, Russia or wherever.
Which is why patsocs/magacommunists are just a bunch nazbols.