Edit: look at the comment right after mine. Perfect proof.
Google's page also says this, which I strongly agree with, though:
> Note: For automatic software updates and security patches, consider using a provider such as Kinsta or WP Engine which offers fully-managed WordPress solutions.
It seems sort of irresponsible to find people who aren't super comfortable with apt-get install and make it easy for them to run a WordPress they're responsible for security updates for; you're just setting themselves up to get popped. If Bitnami solves this, that seems extremely valuable, but my experience is most of the automated ways to patch WordPress come at significant risk of breaking important plugins. And managed WordPress is a reasonable product (almost everyone who wants a WordPress can just use a hosted, managed solution) and a thriving market already.
I suspect there are Bitnami offerings in Google's marketplace too - most things in that marketplace are built by third parties such as Bitnami, but unlike for Amazon's marketplace Google does view themselves as the reseller of the products offered there.
Bitnami does require applying updates via e.g. apt-get, as mentioned in another reply from someone else. I wonder if their GCE images follow Google's norm of turning on automatic security updates by default, as do most regular Google-supported GCE operating system images. No idea.
PS - Hi, long time no see, hope you're doing well!
It is only somewhat recently that the emphasis in their marketplace is towards to Google-sourced images.