Lots of cooking, followed by house cleaning, shopping on line, for 2 others in our road too, which takes up alot of time, walking for a good hour everyday, zooming with friends, family and book club group, catching up with emails especially now as lots of old friends whom are rarely in touch (in other parts of the country or abroad) are now emailing regularly, reading, on the phone to friends and family and watching TV in the evening! Never a moment to be bored, just missing going to art galleries, theatre, concerts etc; although there are some of these online too, and having grandchildren and family round.
No end in sight for us "oldies ' I fear though. So far so good and actually enjoying it in some ways.
I must say though, we are lucky we have a garden and a lovely house plenty big enough for the two of us including having some space to be alone occasionally. Consider ourselves very lucky not to be living in a high-rise flat with no garden.