From Windows, I am used to Google Chrome automatically updating itself. However, this seems not to work on Ubuntu. Every morning I am greeted with a "Can't update Chrome" error in the browser, and following the instructions leads me to download a Debian file which opens in the Ubuntu Software manager but does not provide an option to install it. I understand that I could somehow configure unattended upgrades for apt but that sounds more complicated to me than just using Chrome's internal updater.
So my question is, how can I fix Chrome's internal updater on Ubuntu? Or is this just not intended (even though Chrome seems to suggest this to me), or are there any real good reasons to use apt instead?
I have installed Chrome by the deb file provided by Google.