I don't actually have as much free time as I did before the lockdown, as I've been putting more hours in at work! I work for a company that provides an essential service, and I now have a work laptop. This is also our busiest time of year, since we're starting a new financial year, so our corporate customers need attention now on top of the influx of private customers we've had signing up for peace of mind in these difficult times. I took an unintentional two week break because of lockdown (I had no way of getting in safely and didn't have a laptop) and the work piled up in my absence. So yes. Working.
But apart from that, when I've not been nursing a migraine or upset stomach - which has been more often than I would like recently - I've been passing the time the same way I always do: playing video games. Mostly shorter ones, but I have a longer term project in Dragon Quest VIII right now. I've been listening to the radio a lot more as well (Classic FM) because it helps me concentrate and soothes my head, and I make sure that I go out for a walk at least once a day. I keep meaning to pick up writing my novel or drawing again but I can't seem to find the time, weird as that sounds.