Tech scammers don't just target PC users! Microsoft, Apple, Yahoo, etc will never call you directly. Google only will if you use their business services like Adwords or My Business and even then it's very rare and usually in response to something you've encountered or done and they're trying to help (and certainly are NOT asking for money).

Tech Support Scammers Are Organized, Run Targeted Campaigns for Mac and Windows
Scammers try to force victims into calling bogus support