Any mainstream browser will spy on you, on any device including mobile. Accept it, live with it, move on.
There are some niche ones that claim otherwise, but a few of these are known to send varying amounts of encrypted telemetry back.
Due to the various concerns around (browser based) tracking, many browsers, including Google's Chrome (remember, Google's whole business model is based around tracking for targetted advertisement) are allowing this to be disabled.... ....but it doesn't make a jot of difference, because server side tracking is more trivial now.
Accept the fact that you are tracked, and live with it. Or disconnect your devices from the internet permanently.
If you happen to have a facebook account, accept the fact, no matter what privacy settings you set, *ALL* your details, posts, contacts and so on are public. Along that of all your contacts and friends. And their contacts and friends. And theirs. And so on.
To answer the OPs original question, for work it tends to be IE or Chromium Edge on my laptop, as that what it came with. If I'm on a server, it'll be whatever is installed on said server, assuming it has a gui - the days of text based browsers is long gone
. At home, it tends to be Chromium edge, simply because that is what is installed, and its no faff to keep it secure. IE if a specific site (usually some IoT device lurking in the house) needs it. On my main PC, which I rarely switch on, I have a pretty full suite of mainstream browsers for testing, but on everything else its usually what the OS has as default. Its only a browser, hard to get excited over, and the OS default (Chromium Edge on Windows, Safari on crApple devices, Chrome on Android shite) gets nicely updated regularly with the OS.