To be clear, when I said that Marxists who aren't especially concerned with orthodoxy tend to identify as "Socialists", I did not mean the very different claim that persons who identify as "Socialists" tend to be Marxists who aren't concerned with orthodoxy.

Yes, socialism includes a lot more than Marxism (and did before Marxism even existed.)

And, no, I'm not conflating revisionism with orthodoxy. My experience has been that people who generally adhere to Marx's views but are not concerned with a narrow orthodoxy of a specific approach tend not to identify as "Marxists", and those that identify as "Marxists" tend to be very keen on the orthodoxy of a very specific interpretation or evolution of Marxism (predominantly, an orthodoxy oriented around Leninism or Maoism as the One True Marxism, though sometimes not.)