Any free multi account browser on Windows 11 for anti detection?

Ungoogled Chromium can be as a free account browser for pc on Windows. it's Chromium with all the Google services stripped out. No account sync, no background calls to Google, no telemetry. So you can log into websites like Gmail or YouTube normally, but the browser itself won't sync your stuff or talk to Google behind your back.

For multi-account use, you just run separate instances with different profile folders. The main command is this:

chrome.exe --user-data-dir=..\profile1

You create a shortcut with that, copy it, and change profile1 to profile2, profile3, etc.. Each profile is fully isolated—separate cookies, logins, extensions.

So yeah, it works as a free account browser for pc, but you're managing profiles manually instead of clicking a "new profile" button. It's a bit more hands-on, but totally free and private.