Earlier quoted context omitted.
Fine with Linux though :) LG's behavior isn't fine, but their monitors don't install crapware on Linux.
The monitors aren't installing anything. That headline was a lie. It's Windows Update that's installing LG crapware upon seeing relevant hardware IDs. That's why the problem affected older monitors too - it's the update side that suddenly started to ship malware.
The manufacturer implemented choices to deliberately install the software when the monitors are connected. The mechanism is not important to why this is outrageous.