So you won't have this problem if you're running Linux and other Free Software under your own control. The problem in this case is just another example of why proprietary software can't be trusted.
The understanding should also included that unless LG actually asked Microsoft to implement this autoinstalling malware, it wouldn't have been installed by itself.
I think parent commentator is making the argument that they don't want to financially support companies who engage in these sort of things, regardless if this particular scenario applies to their environment or not.
You could choose to buy from another vendor, but other vendors have the same incentives to abuse your trust in the same way once they manage to persuade you into running their proprietary software on your machine.