Can parents go to work in Australia when they get the 864 bridge sign?

Introduction to the signing of 864 Bridge:

The full name of 864 is subclass 864, which belongs to PR, that is, permanent resident visa. After getting 864, parents can enjoy Medicare, Australia's national free medical system. However, the waiting time for enjoying the pension is 10 years.

The advantage of 864 parents' immigrant visa is that applicants can wait for visa approval in Australia, and the processing cycle takes about 8-9 years (the cycle will change).

This period is not allowed.