This is a primary LG fault, however I would say that Microsoft also has a fair bit of blame here.

They are downloading and installing something without the users consent.

It's nice to have drivers work without any intervention, same with "helper software" but along side the ease of use they also took on the responsibility.

If I download some random .exe from the net; I have to confirm that I want to run it, sometimes I even have to right click and unblock it to allow it to run, because it is "untrusted".

Their signature key, their auto-run system, everything done for ease of use means they own this.

Otherwise what does "trusted" mean?

Yes, and it's only possible thanks but no thanks to MicroSlop.

And it's not like MS is too poor to do anything useful for their customers. They just don't want to unless the cost-benefit analysis pans out in their favor. The customer is worth as much as their wallet.