Just wanted to pop back into this thread to say I've invested in a chromebook for my two youngsters and it is making a world of difference.
Not sure if it is the newer hardware making it easier, the slimlined feel of a chrome OS, or the feeling of them being responsible for something grown up, but it's encouraging our girls to do their work so much better, and as it's chrome based there are plenty of playtime apps too which they can play as rewards.
It's a bit of an investment - there is a bit of a shortage currently on such hardware and we have bit the bullet at over £250 on a lenovo duet - but it's helping us have a better schedule and actually get some proper learning done. Prompted as the school plan to do some live classes now so figured that if I was selfishly mulling over a PS5 at double the price then this to help my kids is reasonable.
If you are struggling to get their attention on their work it may be worth considering such an investment too. The Chromebooks with a detachable screen to make them into a tablet are ideal. Google have a very good parent control app too which helps you monitor all their activity and approve things they want to do.