It depends on verbal and mutual agreement between employers and
employees.
I don't remember any jobscope other than MSD and RIAS requiring
anyone to observe the Internet.
There are jobs that do require their staff to use the Internet and
most employers respect the benefit of doubt for the employees who
are abusing their surfing rights.
Usually, the mutual agreement between the employers and employees
are that employees are not to neglect their duties due to excessive
surfing and it differs from companies to companies.
In my previous workplace, it is understood and mutually agreed that
we are allowed to surf as long as we have performed our duties and
can be responsive to changes.
However, the employer still has the right to insist on proper work
behavior regarding surfing that was not agreed on paper.
