I spend too much time sitting waiting for people to join meetings that have been cancelled or moved - and Outlook / Teams don't know yet. I'm connected - I know

I spend too much time sitting waiting for people to join meetings that have been cancelled or moved - and Outlook / Teams don't know yet. I'm connected - I know this because I'm sitting there 'in' the meeting. I'm receiving emails. I'm talking to people on Teams... Argh.