True, and iPhones are also more common in wealthier people. Worked on a Project once where our target audience was medical doctors in Germany, and we had >50% iOS users on based our user-agent metrics.

Curious how you accurately got that figure knowing how draconic Germans are on protecting their privacy, I highly doubt they're cool with knowing that as doctors they're being tracked for some app targeting.

But yeah, anecdotally, just from visiting their practices, I also noticed most doctors in Austria tend to be in the Apple ecosystem for private use, but their practices and the clinics tend to be Windows.

Collecting the user agent string is one of the most basic forms of web analytics. It doesn't necessarily have anything to do with "targeting" or violating privacy in any way, so it's strange that you brought it up in such a way.