Congratulations on having travelled all around the world, and I'm happy Google Maps has treated you well.
I haven't travelled the world. I live in a small town in the middle of nowhere, and I use both Apple Maps and Google Maps, and have spent years adding and editing information to both in order for them to be more accurate.
Currently, Google has things for my area like building outlines and Street View, which Apple does not. They are going to have building outlines for my area before the end of the year, but Look Around is probably a ways off. The information is mostly a wash... some information on Google is incorrect, and I can't get it changed, and the same is true of Apple.
I have friends who live and work within one of the Look Around areas though, and I have enjoyed testing Look Around at multiple famous locations, so to me it's a little more than a "worthless tech demo", but even if that wasn't the case, I could still manage to get a good idea of what the service will be like when it hits my area.
Good news for everyone in the future I guess, but yes, Google Maps is usable for almost everyone right now, which is one of the reasons why I still use Google Maps Street View.
In the future, when Apple does offer Look Around here, it'll primarily be where I go, but I'll still probably use both.
Glad you finally tried out the "worthless tech demo". The images are indeed one of the reasons why I think it's better than Street View. I'm sure Google will probably work to improve their image quality in the future as well to provide a better experience for Street View.
So does Apple if the information is available to them.
I'm not a spy or anything, so I honestly don't care if Apple or Google track my location. In fact, if it helps them provide better data, I'm happy to let them. However, I hate to break it to you, but Google isn't exactly known for their privacy beliefs.