Looks like no company will be able to go back to office until end of 2022. Even if you get an appointment to get the vaccine they keep postponing it as the Federal Government stopped sending vaccine to the states. Cases worse than they have ever been now in second half of January.
Looks like back to office not until mid 2022. Also, there is no long term testing of vaccine or how long it even will work. Now the new strains are much more deadly and more contagious than previous ones.