I don't want to get into a debate on the "true scrum", but in my experience non-technical scrum masters/POs/PMs who don't write code (randos in my previous comm

I don't want to get into a debate on the "true scrum", but in my experience non-technical scrum masters/POs/PMs who don't write code (randos in my previous comment) are generally detrimental to the productivity of a development team. Software developers who act as scrum masters and whatnot, while also writing code, are way better. In my past 10 years of experience (as a tech lead, principal and dev manager), the single change that always increased productivity has been to get rid of PMs/SMs and take over their roles. A brain surgeon coordinates brain surgery, a software developer coordinates software development.