Good example. Do you know of anywhere that Volvo parts pairing / programming issue is written up or documented?
I'm working on Right to Repair and we get asked for examples like this from various government agencies all the time. It would be very helpful, thanks!
If you're looking for informal evidence, there's plenty of posts on SwedeSpeed and Volvo Forums (and probably Turbo Bricks, for those masochists that own a post-RWD car) bemoaning needing to constantly reprogram tons of things like door switches, and the various lengths owners and enthusiasts will go to in order to attempt to overcome these issues.
If you're looking for something a little more formal, I think the factory service manual probably calls out that the R&R on a ton of parts will involve reprogramming. I no longer own any post-Ford Volvos nor do I have any interest in European cars, so unfortunately I don't have any newer FSMs. A way you might be able to get at one on the cheap is to pick a popular model/year later Volvo (maybe like a 2016+ XC60?), and get a subscription to the make/model/year on Alldata (which was something like $20 a year for just a single combination), or hunt for an FSM on eBay, if it's old enough to still have a paper FSM.
I'm working on Right to Repair and we get asked for examples like this from various government agencies all the time. It would be very helpful, thanks!