You don't think bosses will eventually lose their patience. Of course they will... day 1, 7 30 from now...NO I DON'T BigM..
Or, us the situation to get rid of staff they don't want ? Well yeh course, that the nature of timing and all sorts of bosses would seek to take advantage if they wanted too. One thing though they MUST act the same for all,,, so if it's just you (Hypothetically) then you would have a case against as you could simply point to other staff treated differently suffering the same woes you had getting into work.
You don't think that kind of thing happens, or is even possible? Yes course it does,,, and bosses didn't need a pandemic to treat staff this way, it's always been that way.