You might be surprised to know that Apple has been doing ads for over a decade. [0] They‘ve had ads for a long time, and still do - App Store search ads[1] and Apple News ads, to my knowledge.
You might be surprised to find that that is not the case in Europe. In fact, apart from China and English-influenced countries, very few countries around the world use dots for decimal points: https://en.wikipedia.org/wiki/Decimal_separator#Countries_us...
What you're saying is basically that this scheme will leak the IP address you're on, because that's just how the internet works.
There's... not much that can be done about that, and there's no need for the scare quotes on the words private or encrypted. Any encrypted communication still uses an IP address that can be mapped to a coarse location; this isn't an Apple related thing.
If you want to be able to find your device (it's opt-in), it needs to relay its location via the Internet. Doing so requires an IP address, which can indeed be mapped to a coarse location in some cases (my own home IP address is totally useless, it says I'm in London when I'm on the other side of the country). I'm not sure what the big deal is.
That compatibility with different browsers is a big enough issue in 2019 to stop you from using Firefox is just a sad reminder of how far we’ve fallen. Used to be that we actually cared about stuff being usable across browsers, after what we experienced during IE’s dominance.
It’s also a testament to Chrome’s dominance -now-.
[0]: https://en.m.wikipedia.org/wiki/IAd [1]: https://searchads.apple.com/