I fully get my use case isn't the typical one. But there are tons of reasons to have good, very reliable GPS tagging in the body of a camera. And Canon made the 7DmkII and 5DmkIV that both do a splendid job at it. I don't think it's too much to ask of Canon to keep that feature for those of us who desperately need it in the replacement body and not be able/willing to deal with a poor mans' solution - even if we have hands-on experience in how (bad) it was before those cameras came to market - and some of us still suffering daily from that lack decades later.
Yes, clearly your use case is very different from mine. I use the phone for geotagging one way or the other when I’m traveling with my small travel camera. Around home, I am using my 6D2, often in walking distance from my house, since I am shooting pictures for the neighborhood website or newsletter and scenic things in nearby woods, including those behind my house. So a lot of the time, the GPS is used for setting the clock in the camera more than location. And if I am driving somewhere to shoot, I know where I went, usually with the destination in mind before I head out. But I’m glad to have the metadata for reference.
It is not a surprise that my G5X II doesn’t have built-in GPS. It can use the phone well enough that I can tell where I was on the Antrim Coast when I shot a picture. But I am shocked that newer and I guess somewhat more expensive R mount cameras don’t all have GPS. Since I’m not in the market for one, I haven’t paid much attention to the features or lack thereof in those cameras.