Learn Russian: Она настоящий специалист и прекрасный человек. - She is a real specialist and a wonderful person.

In Russian, the words специалист (specialist) and человек (person) are grammatically masculine nouns. Even though they refer to a woman here, any adjectives attached directly to them must match their grammatical masculine gender. Therefore, we use настоящий and прекрасный.

Why is there no dash (-) after Она, since we are equating a subject and a noun?

You are remembering the rule for noun-to-noun sentences (like Моя мама — врач). However, when the subject is a personal pronoun (like я, ты, он, or она), the dash is generally omitted. If the sentence started with a name, you would see a dash: Мария — настоящий специалист.

Since we are currently learning about the verb бывать, could we say Она бывает настоящим специалистом here?

Using бывает (tends to be / is sometimes) here would sound very strange! It would imply that she is only sometimes a wonderful person or that she only occasionally acts like a true specialist. Because these are permanent traits, we just use the standard zero copula (omitted 'to be' verb) for a simple present state.

Does настоящий literally mean she isn't a fake or an imposter?