That is a real thing, it's called tracking, it's NOT "fairly inaccurate", and we should all be fighting it. Highly advanced and multifaceted digital fingerprinting, including behavioural fingerprinting, is being used by corporations to spy on our internet activity.
HTML is old and weird and its browsers have a bad ecosystem. The way to go would be to ignore xkcd 927 and make a new standard and a pilot browser for it. The hard part would be getting people to use it.
"Necessary" cookies should have to be able to be rejected
Temporary Containers extension fixes this (I use its continuation fork, Temporary Containers Plus, since the original has not been updated in 5 years because the author is dead), all new tabs with no container are changed to a temporary container that is deleted after a configurable time without any tabs in it
That is a real thing, it's called tracking, it's NOT "fairly inaccurate", and we should all be fighting it. Highly advanced and multifaceted digital fingerprinting, including behavioural fingerprinting, is being used by corporations to spy on our internet activity.