The fact that all sites have them, shows us a terrifying truth: all websites are tracking us with 3rd party tools. "all" websites send our browsing habits off to (many) companies that will sell, mine or otherwise monetize our data.
Again: A cookie banner is not needed if you don't have 3rd party and/or tracking cookies. E.g. With matomo on your own domain, plausible analytics, or simply mining your servers logs with math, you won't need cookie banners.
As it was pointed out, no, EU regulations don't mandate cookie banners. It seem you have an axe to grind with the EU.
> but it doesn't even prevent tracking
Incognito mode doesn't prevent all forms of tracking was what GP said...
EU regulations do require cookie banners.
And I don't even like the EU, I want it ended.
Go the Apple website. No cookies banner.