Perhaps so, but with JS disabled, Chrome uninstalled and all Google apps disabled and or removed together with a myriad of other tweaks including phone rooting, regular rebooting of routers to change IP address as well as using multiple different IP providers seems to minimize the problem.
Can't remember when I last saw an ad (except for some static one within the page), and the last time I actually clicked on an ad was about 20 years ago.
Oh and BTW, I use a dumb/feature phone for telephone, my smartphones have no SIMs and they connect to the net via a WiFi router (usually a pocket type), and no email is sent from smartphones. Nor do I use any social media (perhaps one if by some stretch HN could be classified as one).
And Gibson Research's ShieldsUP can't find anything of note.
Finally, without JS the web runs like a grayhound. Sites that break without it are not worth visiting anyway (and they're usually the worst privacy offenders).
I've no need of them, as they say, there are pleanty more fish in the sea.
All this nonsense is only a problem if you expect something for nothing and or like the trinkets and pretty baubles Google pretends to offer for free.
PS: and I don't send or receive email from those who've gmail addresses. Boycotting those with gmail addresses sends a message that one is actually serious about privacy.
Browsers can block known sources of advertising and fingerprinting code.
It's hard to produce a fingerprint when the browser won't load the code.