Supernet supports shared security now?

I want to establish supernet network on matic. but It’s not easy to find validators.
I was told in the past that the polygon network will provide the ability to share the validator of polygon, and I was wondering if it currently provides that function

My understanding is that Supernets are mainly for big companies that want to spin up their own blockchains. The motivation for the validators would be lots of traffic and possibly earning that Supernet’s governance token. Your best bet is to ask the devs on Discord.
Here is the list of validators.