> Apparently it's all about self-organising teams and having no leadership.

Gross over-simplification. For anyone curious they have videos out there, though they are 10+ years old now so may no longer be accurate, but in 2019-era this was still a thing (company I worked for did it too).[1]

[1] https://www.youtube.com/watch?v=Yvfz4HGtoPc

This video was created in 2014 and was more a description of what they strived for at that point rather than of the full messy reality. Spotify quickly after that grew larger than those ideas would sustain (without changes) and rapidly became more alike any other tech corpo. Certainly around 2019-2020 it was not like in the video by any means. Some structures or names of concepts stayed way longer than the actual practices as described.

(I was active as a coach in Stockholm around this period and know multiple people, both engineers and coaches, who worked at Spotify including Henrik the author of the video.)