I have been blessed to have a private office for the first 10 years of my career and wfh the last 10. Neither is perfect and I’d really like to work from an office 1-2 days per week. If I did, I wouldn’t mind open plan tbh. The whole reason to come in one day per week would be to be interrupted and interrupt others. And meetings. I still have 4 days for focus work, it would be ok. Going to be office to sit alone used to feel great, now it seems pointless. I’d plan for zero peace and quiet and zero privacy at the office but I’d see it as the whole point of going there.