Mornings are spent on "Kid's Club" via https://www.modulo.app , which is a fairly new startup that provides online spaces for kids to learn together, hang out together, etc. My daughter has made a number of new friends through that and she's able to do a lot of the same stuff she was doing before (art, learning apps, etc), but in a more social way. Sometimes she gets to help other kids when they get stuck with their learning apps, and visa versa, which is fun. We're likely to expand this to some of the afternoon too, since they're adding a Spanish program.
Overall, I've noticed that her development has thrived since she's moved to a more self-paced environment. There's been no sign that using screens a lot is causing any problems. We've set up an iPad on an adjustable goose-neck stand so she can (and does) run around a lot and her friends can still see her. We also make sure there's time outside for exercise.
We've found a lot of good online resources, generally free or very cheap, such as Cosmic Kids Yoga, Draw Every Day with JJK, Mo Willems Doodles, and Khan Academy Kids. We've also discovered kids coding apps, like CodeSpark and SpriteBox, that have been a big hit. The teacher at Modulo.app does a good job of helping us find resources for stuff our daughter takes an interest in, and we share stuff we find with them too.
We're both full-time parents, and certainly we're not as productive as we were before, but for me it's a totally acceptable compromise. I get to be more involved in my child's development and I get to see her much more than I did before. One key thing is to have carefully planned schedules for everyone in the house. Kids are generally much happier when they have a schedule, and it also means as parents we know when we can arrange meetings, do live coding, and so forth.
We're very lucky to have these options. I know a lot of parents just don't have the ability to work from home, or to reduce their working hours to spend more time with their children.