I use Microsoft rather than Apple because I don’t use any Apple products and am significantly less informed on the level of tracking they employ, and I use Microsoft rather than Google because Microsoft in in charge of the operating system I use and is making my user experience measurably worse with the amount of crap they run and track by default. Google on the other hand only tracks what I do over the internet, and even then not all of it (though they actually do probably get everything I do since I haven’t worked up the motivation to switch to Firefox yet). I also will say I actually don’t much mind someone tracking what parts of a website I visit, such as what products I view on Steam or Amazon, so long as I have an actual account that tracking is attached to.
It is also important I feel to emphasize I am only giving examples, hate all involuntary tracking, and hope that any theoretical anti-tracking laws would be broad enough to stop this kind of behavior from every company rather than just a few.