Employment and academic status are not permanent, nor are visum based on those without conditions.

Permanent residence was more akin to citizenship in that they were permanent and mostly unconditional. The discussion in Sweden around them often came into a discussion around what the difference between citizenships and permanent residence, and if that difference was meaningful.

The practical difference between Permanent residence and citizenship was that:

Swedish citizenship allows a person to be elected into parliament, employed by the police or work in the military.

Swedish citizenship are treated by other countries as Swedish citizens according to international relationships.

Swedish citizens that live aboard can vote in Swedish elections

That was it. Without permanent residence people need to become citizens to get the same rights as citizenship, as all other form of visums has conditions and limits.

Those are significant differences - I didn’t find anything saying Swedish born citizenship can be taken away.

While permanent residency can be taken away due to moving away from Sweden or for criminal activity

Only Swedish criminals can remain in Sweden - probably good for RoW