their "private" is not private. about a month ago, i searched for some health-related stuff in a chrome incognito window and then immediately afterwards got related sponsored product ads on amazon in a logged in normal window.
Amnesiac mode, if you will.
You can try using a different device but even then, I occasionally get recommending things that are definitely influenced by my roommates (i.e. on the same WiFi)
Using something that prevents fingerprinting helps, but only if you don’t use that browser all the time — otherwise it’s just another fingerprint — and still on the same network.
Some browsers, like the one you should be using, have anti-fingerprinting tech in them.
Anti-fingerprinting tech just produces a different fingerprint. Google knows e.g. when things are scrambled but certain other things stay the same.
You can see a similar thought-process behind Tor bridges so it is tried-and-tested. Noted that it is a much more difficult feat to accomplish in a full blown browser rather than network layer.
Apparently tracking data of Europeans has a much higher market price.
Deeply paranoid people can have occasional good arguments mixed in with their sociopathic traits. The fact that Brave didn't fork Firefox, or build their own like Ladybird implies to me that they are not really trying to improve the system. It's like Windows users extolling the virtues of the LTSC version.
I haven't used chrome in a long time but as far as I was aware they do the same thing: wipe session data on close.