Having a learning routine has helped my dgc.
Also, their parents have encouraged fun activities that are also educational, such as giving each child a patch of garden to grow their own plants, including vegetables, and learning to prepare simple meals
Mum and Dad are making the most of any opportunity that arises to make it educational (for example, the children now know all about why bees swarm, and how a beekeeper collects them to take to a new hive!)
I have given them a remote French lesson each week.
I have found that when the lesson ends, one or both of the dgc want me to stay online and play games with them. In fact, one of them in particular (age nearly 9) has started to call me (video on Messenger) quite often, just to quietly play games.
Before lockdown, this never happened, so I feel our relationship now is better than it has ever been before.