This thread is for people assessing whether to buy out the lease near the end - several others discussion Section 45 of the IRA (allows these to be leased).
It sounds like you’re also looking for Leasing 101 to understand how leases work.
The source for the buy rate Money Factor (which dealer can mark up) is either Edmunds Leasing Forums, or pay to become a Super Supporter here to get access to Rate Finder.
And if you don’t want to take the time to read and understand Leasing 101, there are brokers in the Marketplace offering Audis, who can also talk you through their lease programs.