There’ve been a couple of cool Work from Home project reports recently. @jody.albritton has a very cool one on Automations based on signing into zoom:
And a much lower tech option for a similar use case is the Meross RGBW table lamp, which I am really happy with. It has a press button on top of it, so you don’t run into any of the issues of someone turning off the current. And It has a manufacturer provided smartthings integration, so no custom code is needed. This is now my favorite choice for colored light notifications. The price is back up to $38 after the discount code is applied, but I think that’s still a good price to very easily solve the “on air“ notification issue.