Companies seem to think that because there is a screen attached somewhere/somehow to the device they made it's carte blanche for them to turn that screen into a billboard.

I'm not "100%" against adverts (However I will avoid them if I can, for example I'm happy to pay for YouTube Premium simply to disable the ads and still support the creators I watch), I understand that services need to pay the bills, Take YouTube or Twitch an examples, they can't exist without monetization because servers, staff, bandwidth all need to be paid for and obv content creators need an income if the platform/viewers expect high quality content from a wide variety of creators (not just those who can afford to do it as a hobby/fun).

But its the "bait and switch" of these companies that disgusts me, esp when its on locked down hardware we have purchased. It's changing the sales contract after the purchase has been made. How would we feel if for example 2 years after purchasing a car, it now refused to start (or for something more "mild" changing the climate controls) until you had listened to 3 mins of ad's though its infotainment system? People would be up in arms about it. But for some reason, people just seem to accept it when it comes to our entertainment devices.