Tor browser's great - but for more complete privacy protection, you need to add this
Tor Browser encrypts and anonymizes only browser traffic; to protect other system network traffic install and use Tor itself, available free for Linux, macOS, Windows.
Surfshark study probes data hunger of web browsers
Chrome is the highest data collector among browsers, with 20 data types collected. TOR has no data collection, marking it the most privacy-focused browser.