Everything depends on the platform where you are passing the selfie verification. If it's a fintech company, they need a live person. Most platforms are very smart; they are trained on thousands of fakes uploaded every day.
Nowadays, platforms check a huge number of parameters that no phone emulator can replicate. And even if an emulator manages to spoof some, they will look very foolish in the eyes of the algorithm. It would be like eating chocolate, and your friend asks: "What are you eating?" And you answer: "I'm eating pink mango" (I think my humor is clear).
The number of attempts you make during the selfie verification also matters. The more deviations, the more red flags.