Right, if you work for big companies that otherwise are doing well (counter example: Sears, other brick-and-mortar only retailers) you probably get paid full salary/wages to WFH as much as possible (and it's generally less work than you'd be doing ordinarily) while if you work for a startup they probably won't have the funds to not at least temporarily lay people off. If you work store-level your job is in the most jeopardy because it relies on in-person customer traffic. If you work other blue collar jobs, it just depends, but the oil guys, police/fire/EMS/doctors etc aren't going to lose their jobs, if anything their jobs will be in more demand.
My mom is a public school teacher. Teachers are still getting full time pay and not having to use their vacation time. Awesome.