HR - unprofessional, rescheduled me 6 times and ghosted when I requested confirmation. It's not that difficult to schedule.
Interview panel - Hiring Manager and Skip Level Manager. Hiring Manager was unprofessional, didn't sound like he knew what he was talking about, and plain condescending. Gave an unnecessary innuendo about how the job role is like having a boyfriend which makes zero sense.
Interview structure was to have a virtual interview first, a pointless assignment with no boundaries (word count, etc), and then a next round. No point. I opted out of continuing as the manager didn't seem to know what he was doing.