You can do firmware updates with the SD Card, that’s the way it’s been done for decades.

Yes, but I’m not checking Canon’s website for every camera I own, when the app would just tell you.

That’s one thing that I shouldn’t have to chase Canon for.

I’m not going to pretend what geotagging and canon live view™ is but it sounds a lot like image metadata?

Geotagging puts location data in the photo. This is something I add to every image, because I use location for searching.

Live view is cool. You can set up the camera, and view/control it through the app.

This has many applications, and should never need an account to access, since the app should be communicating directly with the camera.