I take gromwell root tea and turkey rhubarb when feeling ill on the hypothesis that they more weakly inhibit the same metabolic steps that paxlovid does. Most healthcare providers will not prescribe paxlovid even if you have symptoms and even knowing that earlier intervention is much more effective. I also decided that wearing a mask on public transport is an obvious win regardless of which illnesses are currently going around. Pretty easy since I don't use it much. I suspect that the air quality in airplanes is actually quite bad, despite assurances, so that counts as public transport.

AS a purely anecdotal data point, my mother had COVID19 (again) a couple of weeks ago.

We appear to be in the "nearly everybody will keep getting it regularly, for ever" phase of COVID19.