We're probably less productive in these confs, but are overall more content and have shorter response cycles if problems come up so it really evens out and puts less strain on us mentally. We're also not really talking allthe time. it's weird, but the presence of someone else (even if they're just typing) has an overall positive effect on me.
Programmers have a wonderful solution that builds on shared presence -reducing loneliness- while enhancing focus. By using a shared screen for WFH, pair programming seems an ideal fit for the current situation. It also allows for expensing a nice gaming headset.