I am curious about something...

I have been on flights where the FAs seem to use turbulence as an excuse to cut down service and even skip the pre-landing safety check when most of the flight was smooth. I have also been on flights where the FAs really struggle to complete service even though the turbulence is pretty bad.

It seems to me that the more standard way is the pilots or purser announce "flight attendants take your jumpseats", service is suspended (and sometimes the FAs actually "shelter in place"), then the pilots/FAs update the passengers and resume service when they can.

What is the standard procedure? It seems some kind of PA announcement from the cockpit is beneficial so passengers know the FAs just did not make this up?

I suppose mainline and each regional carrier is different?

Thanks.