Nobody knows do they. I'm getting sick of feeling like a murderer every time I do so much as clear my throat within 20 feet of someone..
Anyway, on topic, if you work on the assumption that covid is real, not made up or a conspiracy, then there is no way in hell you could have fans at football- queuing, toilets, turnstiles, cramped passageways etc, I don't see any possible way that you can do that "safely" if we're at the point of no more than 6 people being in proximity, makes no sense to have that rule then be planning to have a few thousand people getting together