Is there value in trying minoxidil only before adding finasteride?

I scheduled an appointment with a dermatologist for hairloss. I was hoping for blood test and other tests to rule out hairloss due to non genetic factors along with prescription for finasteride.

She took a look at my hair with her hands for 10 seconds and said it was genetic after learning my family history. Then she said to start with topical minoxidil but didnt mention dosage or percentage at all. She mentioned i could get it OTC. That was all. She also didn’t prescribe finasteride which i thought was odd. It sounded like she wanted to wait 3 months of just minoxidil and then if no progress then try adding finasteride.

Trying to understand if this is normal guidance or I got a real shitty dermatologist (Is it normal to do no tests or any kind?) And is there a point in hopping on monoxide without finasteride?