Tor browser obviously only routes what you are accessing through that browser through the Tor network. In DdmrDdmr's example above, if you are torrenting Tor browser will do nothing to protect you, even if you downloaded the torrent link via Tor. Torrenting is a very poor use of the Tor network anyway. If you are using Windows, it will happily phone home continuously outside of the Tor network and expose your real IP to anyone who might be watching. Any other programs you might be using such as Telegram or Discord won't use the Tor network. If you are logging in to sites like Google, Facebook, etc., and you have ever logged in to them from your real IP, then Tor achieves nothing - they are tracking you all the same.
You can route all your traffic through Tor, but as I said, you will notice significant delays and very poor speeds for any downloads, media, etc. If you want to do these kinds of things, you are best served by purchasing a reputable VPN, although note that this still isn't foolproof and you are still trusting your VPN provider to not sell you out.