I generally (if conditions allow) switch OFF the seat belt sign at 5000agl...after all, we pilots get thirsty, and our gals make excellect coffee/tea.
No company laid down policy....just the way I like it, SCD.
We also serve hot meals on every sector, and the food ain't bad, either.
At Baku, the catering folks asked us what we would like.
I asked for a New York steak with vegetables...and it was one of the best I've had in a long time. Fresh fruit plate as well. And, sandwiches.
Superb folks in Baku.