I had a few phone interviews with a corporate hiring manager, and then 2 in person interviews with the local branch manager. All the interviews were very relaxed, not super technical.

Started with a phone call/interview, then a zoom call with the hiring manager, then an in-person interview where you had to do a presentation on HVAC refrigeration cycles. Overall, it was a good experience. I made it to the final interview but did not receive an offer.