A VPN alone will not do that. It will make it more difficult, as your location and IP address will be changing, but there are still methods.

Cookies, for one thing, are the main way in which you are tracked. In fact, most cookies exist solely for tracking. The solution: clear your cookies regularly, and use private mode when possible.

Browser fingerprinting can also be used. This method takes into account your user agent, screen resolution, installed extensions, hardware info, and also whether or not you have Do Not Track enabled (this had good intentions, but is counter-productive nowadays and should be disabled), and uses this data to single you out among other users. The solution: use a fingerprinting-resistant browser — such as Mullvad, Tor, Cromite, or Brave — never make your browser fullscreen, and don't install any extensions that change the behaviour of a website (uBlock Origin and NoScript are exceptions). If you use Tor, do not sign into anything and try to use onion services when possible. If it's not too inconvenient, also disable JavaScript.

However, you can still be tracked by certain services, regardless of your protections. The solution: Stop using data-hungry services — such as those run by Google, Meta, Microsoft, etc. — and replace them with privacy-respecting alternatives.

Also be mindful of OS-level tracking. In a nutshell, don't use Windows (Linux ftw) and avoid Android. If you have a compatible device, consider using GrapheneOS or LineageOS. Otherwise, it's often possible to block OS-level trackers with an ad-blocking DNS, such as NextDNS.

Here are some further resources:

• Privacy Guides
  • Tor
  • Forum
• Techlore
  • PeerTube
• Naomi Brockwell
  • YouTube
  • LBRY