I use Tor on Android because it's easily configurable for Duck Duck Go and Twitter with Orbot. It's possible to use it with a stable Firefox version too but I can't because I use the beta version.
On the other side, as it is a vanilla (I mean non-rooted) Android from a Google device, does it make sense to use Tor? Anyway I will send a lot of logged in data to Google or other organizations.
Is it useful? Isn't it dangerous for others Tor users if some data transit through my phone ?