How to Explain Gap in Experience?

I'm looking for a job in data analytics, but have a large gap in relevant professional experience. I had a couple software engineering internships back when I was doing my B.S. in Computer Science from 2016-2019, but since then have been a bartender... I went back and finished my M.S. in Computer Science in Fall 2022 but because of life am just recently trying to get a job. I know it's brutal out there and I've already done hundreds of applications. If/when I speak to a recruiter or do an interview, what is the best way for me to explain this gap in experience? The reason I fell off back in 2019 was due to mental health situations, and I'm finally in a better space, but I don't think that that's appropriate to say in an interview.