when creating a private link, the resulted dns for the cluster is in the form of "cluster-pl-.{somerandomstring}.mongodb.net"
the only difference from the public endpoint is the 'pl' addition in the first section.

in order to configure the vpn wildcards and rules,
it can be extremely helpful to have this separation more general, for example
cluster.{randomstring}.pl.mongodb.net -- private links
cluster.{randomstring}.mongodb.net -- public

that way we can use the wild card *.pl.mongodb.net to differentiate and route the traffic accordingly