I don't know exactly what I'm asking for as a solution so I will just explain the issue and see what could be done If anything.
When you go back to a dashboard page that has been open previously but has "lost focus" in between, it will show a green tick in the top right which implies everything is connected and correct. But if any device has changed status in the meantime the dashboard is actually wrong for those devices and needs refreshing.
Could the dashboard not be made to do an automatic refresh when it regains focus? Or should it not refresh correctly every X seconds anyway? A dashboard with a green tick but incorrect states doesn't help with WAF.
This is using Chrome on various Android devices.