Can you create a GSN enabled contract that calls a deployed non-GSN contract?

Asked via Intercom: Can you create a GSN enabled contract that calls a deployed non-GSN contract?

Yes you can call a deployed non-GSN contract from a GSN enabled contract.

Calls to the GSN enabled contract can be relayed via the GSN.

I suggest trying it out, you could use either the GSN Starter Kit or the guide: