Earlier quoted context omitted.
Do you have a source for this? Google is an ad company, they have a full model of what you like and dont like at different states of your life built. What does Apple have that's even close?
Apple is also an ad company, they generate between $5-10B on ads alone a year now and more importantly that is one their fastest growing revenue segment . Add the context of declining revenue from iPhone sales. That revenue and its potential will have enormous influence on decision making . The thesis that Apple doesn’t have ads business so there is no use to collect the data is dead for 5years now
For Google, over 80% of their revenue comes from ads.
Apple's revenue is around 380 billion, 5-10 billion in ads is in the "other" category if you draw a pie chart of it... They make 30 billion just selling iPads - their worst selling product.
Apple can lose the ad category completely and they won't even notice it. If Google's ads go away because of privacy protections, the company will die.