Screening call, tech interview (in person), HR & team fit interview (in person), formal videocall with COO (Per Lauritzson).
I was told the last call is only a formality, only people that are about to receive an offer ever get to that stage. Call went well, had a great time with Per, he liked me and gave me a lot of praise. They went silent after that. As there were holidays I decided to wait a week (5 workdays) for their reply with the offer, but still no contact. On the 6th day I have sent them an email, to which they responded with a copy-paste template of being sorry and not selecting me as there were better candidates, while the job got posted to LinkedIn 3 days ago...
My take, don't waste your time on them, they are not hiring, it's a ghost job.