I think you didn't read my comment. The problem was parents cancelling daycare because they thought they could take care of kids and work simultaneously without impacting their work.
They literally had daycare, cancelled it, and brought the problem on themselves after WFH was instituted.
> I work in cybersec, all those alternative channels can be monitored or blocked just fine,
You are deluding yourself if you think none of your employees are using their personal phones to talk to each other, or that groups of employees don't gather in personal Discords and chat app groups.