Software trying to update when it is started is such a common pattern, despite almost always going against user intent. When I start software, that's because I want to use it. It's pretty high on the list of times I don't want it to become temporarily unusable while it updates itself. Doing the same with vehicle firmware is a sad but predictable state of things.
One of very few things I hate about current Samsung phones - there are popups about updates of their preinstalled (and uninstallable) apps from their own store. I always ignore it, and within few hours there is another notification how they were updated. Seems like most idiotic approach, illusion of choice, effectively frustrating users.
Also they randomly decide to "Optimize" apps on startup, making a startup go from 30 seconds to 5 minutes or something. Better hope you didn't turn on your phone to dial 911.