Your post contains confusing data…you may not get the correct info based on what you wrote.
I recommend pulling up your nav map VERSION (post a pic if you can) as well as the Google info you mention.
I can’t tell if there’s aftermarket components added to your system or not…especially with the GOOGLE selection. I don’t recall ever seeing anything associated with google on my 2013 6 series that had the CIC iDrive system.
If you select NAV to pull up the maps on the iDrive screen, then press the OPTION button and scroll down to select to see which version you have. You can see in the screen capture below that the PREMIUM version (which is usually what the CIC has) is higher than the 2019 nav maps you were told were available. I’m sure the nav maps are at least up to 2023 now:
