An update if someone is interested:
Lessons are once a week for about 20 minutes. I worked through a first year's beginner book in about a month, which was great for learning the basics (posture, first and half position, ...) and relearning the bass clef.
I've been working on how high the moon for the last week or so (melody, arpeggios in different inversions etc).
I'm well aware I'm just scratching the surface, but so far I'm very pleased. There's something about the physicality of playing an actual acoustic instrument. So far so good!