That’s a good question, but a bit pointless. Usually when people say “crypto fascist” it’s just shorthand for “people whose opinions I find inconvenient or with whom I don’t agree”.

I mean "people that can be bonafide described as fascists by any reasonable standard but are smart enough not to broadcast their horrifying beliefs in polite society" but sure, be cute with words, it's the right moment for that historically.

I am sure a fascist can hide in plain sight. But my currently unanswered question is how can you measure that? Is there any objective data here, or are we talking about our subjective perceptions of society?