I suspect you are correct. I looked it up and, on the 2020 Q7, the fob itself is...

		Wistar on April 2, 2020 \| parent \| context \| favorite \| on: Honda bucks industry trend by removing touchscreen... I suspect you are correct. I looked it up and, on the 2020 Q7, the fob itself is ~$350 and the Audi-dealer required re-programming is $150, so, at least $450 to replace a fob.