This is really for the dev/product team -- (a) would it work, and (b) would it be acceptable for customer scale unit extensions to target the netstandard2.1 framework if we are already hosted on the CSU Core runtime?

This is really for the dev/product team -- (a) would it work, and (b) would it be acceptable for customer scale unit extensions to target the netstandard2.1 framework if we are already hosted on the CSU Core runtime?