From your perspective, is it easier for people to apply for a visa with a different employer after they already have one with a different employer in the USA or

From your perspective, is it easier for people to apply for a visa with a different employer after they already have one with a different employer in the USA or is it the same as if they were applying from abroad the first time? I've felt at times like switching jobs from an E2 to a TN visa might be risky if they evaluate me the same as any other candidate given I don't have a formal CS education.