Did Google give Chrome a boost? Yes. Was that a good thing? Also yes. Chrome was the better browser at the time they did that - still arguably is. But that doesn't mean monopolies are involved. Apple gives privileged advertising to the iPhone, iPod and iPad on their website and they aren't a monopoly in any sense.
Google is arguably less of a monopoly in pushing Chrome because they sell advertising to other people. I'm sure Samsung would pay an absurd amount of money to get an ad on apple.com with any URL path. In theory Google could be a monopoly and put a chrome ad on google.com but the fact is that they aren't a monopoly and pushing chrome did good for the world, not harm. They're just providing exceptional products and people trust the brand [0].
[0] Trusting brands in software is silly.