On the prior update, I posted a note here about how my Pixel 7a "double-booted" (that is, upon reboot it showed the warning about booting a different OS, then the google logo, then the GOS logo, then repeated).
It did it just now when I rebooted for today's update.
Is this something specific to the 7a? Really freaks me out as I'm afraid it's stuck inside a boot loop. If this is expected behavior it sure would be nice to have a message about it show up someplace so people don't worry.