Using TOR Browser does allow you to bypass Cloudflare browser checks, but this is likely because they work together to help Cloudflare spy on people wanting to be anonymous, making TOR Browser a honeypot. This is further supported by the fact that the TOR Project deleted a ticket criticizing Cloudflare (MozArchive) - but left all other tickets alone, proving it was not because of a “pedophile attack”, like they claimed. I see no reason to use this browser, really, when PM can be configured to use TOR all the same, with all the other advantages.