The Tor browser

[Jehanne]

Use Tails:

Tails

Well, using Tails as your primary OS doesn't sound like a good idea to me. Your primary OS should have useful apps such as, for example, LibreOffice or GIMP. Office Online is basically useless with TOR because of the high latency. And even assuming LibreOffice works with Tails (Linux distributions are compatible enough that Hello World program can be made to work on all Linux distributions with the same processor architecture, but not much more than that), you still need to download it, and downloading large files over Tor is not secure (and it's very slow). Attempting to route all your traffic through Tor will likely make it possible for your ISP to see you are using Tor, because it's unlikely that all the legitimate traffic from your computer would be random noise or routed through Azure.

Tails is a distribution; it never claimed to be everything to everyone.  Most ISPs are not doing deep-packet inspection; if that is a concern, then use bridges.  More difficult to tell where you traffic is headed, and also, anonymous public WiFi hot-spots are also a good idea if you are in the "really paranoid" category.