Spying on people’s behavior & profiling them is wrong. That’s why we have made sure that Google’s Topics is disabled in two separate ways in Vivaldi browser.
I'm using qutebrowser as my daily driver, and which it doesn't have extentions it does have a basic adblocker. The really useful thing I found though was a greasemonkey script that just sets the playing speed of youtube adds to "Ludicris Speed", so the creators still get paid.