Too much online.
But also walking - I've always been quite keen on getting out for a walk, but having the time and space to go for longer walks and explore different parts of my area (rural, loads of footpaths), has been great. Done wonders for my cellulite too, bonus!
Decorating - some we've done ourselves (painted and papered 3 rooms), some we've managed to start planning properly, some trades we've managed to get in (plasterer, electrician, plumber, Carpenter). I'm itching to get our bedroom painted, and sort the kids' rooms out, but DH less keen.
Gardening. We moved house last autumn (also hence the decorating splurge), and have inherited a beautiful garden. We work hard on its maintenance, weeding, deadheading, replanting, plus we've created a small veg patch, which we're just starting to harvest. Watching the changes in the garden, the wildlife it supports has been joyful.
Cooking. All. The. Time. Actually, I'm not doing as much as the earlier part of lockdown, I tried lots of new recipes, we had themed days/weeks (largely based around holidays we'd had to miss 😭), with cocktails to tie in, and lovely cakes every week. I'm now on a diet 😂😂.