First interview was basically the interviewer asking questions derived from the job description.
The interview starts with an admission of the biggest interview red flags: the meeting is recorded.
They then mentioned two of the biggest red flags:
1. Time tracking with periodic screenshots
2. Unpaid test task
They also mentioned that in the next steps, it would be helpful if I have used their questionable software.
For me these were all I needed to hear but felt freer just playing along until the end to not be rude.