How do you sign in on a streaming tv if you have an Android phone?

If your smart TV supports the Apple TV app, then you may download it from the TV’s app store.

If your TV doesn’t support the Apple TV app, then you’ll have to connect a streaming device that does support the Apple TV app.

All the ways to watch in the Apple TV app - Apple Support

Watch on your TV

• Apple TV (4K, HD, and 3rd generation) ﹥

• Streaming devices ﹥

• Smart TVs ﹥

• Gaming consoles ﹥

if https://tv.apple.com/

does not work with any of the browsers available in google app store

then I suppose you don't view appletv+ until the day apple release an appletv app for android

or the site begin working in the browsers for android