I had only two minor problems during the process:
1. initial time delay for arranging first tech section.
2. I had two interview sections that I consider to be initial tech screenings (one with a recruiter and one with the hiring manager). One of these talks could be skipped, in my opinion.
I haven't received an offer, though I got some helpful feedback from every interview section. That was good.
Overall, I would recommend applying to Databricks even though my was rejected.