I'm living with my partner. We both work remote. Not sure about her, because her job (teaching) is not super-well suited for remote work, but my productivity remains about as high as before. Granted, I tended to be remote 1 day / week even before All This. I would also guess that if I didn't have my partner sharing the flat with me, my mental health & therefore productivity would be lower.

(As for monitoring, yeah, stuff like that mentioned in the article would never fly here in Finland. We have very strict privacy laws, and the employer cannot do whatever they please.)