I was a carpenter builder all my life.
It partly depends where you are as the truss will be built for different live loads. By the great lakes or Iowa. In all my life I have never removed snow from a well built roof and do not recall anyone I know in the business doing it either.
Do you have a reason to be worried that you have not told us?
Do you get ice dams?
Based on what you have told us do not worry.