I have worked in all of 1,3,4,20-35 office rooms and home office. I don't think single person rooms are necessary (but better), but open office is definitely n

I have worked in all of 1,3,4,20-35 office rooms and home office. I don't think single person rooms are necessary (but better), but open office is definitely not grate and without noise canceling headphones completely unbearable. With rooms with small number of people (2 or much worse 4) it also depends _a massive lot_ on the layout. But also the other person, i.e. do they constantly click their pens, do they interrupt you all the time, do they have ad-hoc meetings with other people at their desk etc. etc. The problem is such factors are hard to "control"/estimate/plan with. Through similar considerations apply to home office too, i.e. people need room in their home which can become office space. E.g. working in you bedroom comes with a huge number of problem, which can be overcome, sometimes, but it's IMHO not as simple as "just" having a proper desk and chair.