FWIW, Met some friends at Gold Lake campground in Tahoe NF this weekend. There were several people camping there. Did not see any signs regarding closures. Maybe they just have not gotten to it yet.
My bet is there is no consistency to the NF closures. I was told by someone that the FS is still operating because they have a contract that they will keep working and get back pay. I have been seeing the normal amount of FS traffic in my area.