Guys, are you sure about that ?
I found that on the XboX SoT FAQ :
On how many devices can I install Sea of Thieves?
On Xbox, you can install Sea of Thieves on your home console, as well as install and play on your friends’ consoles if you sign in to Xbox Live before playing.
On Windows 10, you can install Sea of Thieves on your main device (usually the first device you install the game on), and install on multiple devices if you sign in to Xbox Live before playing.
You can only be signed in at one place at a time while playing Sea of Thieves, or any other title that supports Xbox Play Anywhere.
Edit : Apparently it is possible : https://www.reddit.com/r/xboxone/comments/46d51r/sharing_games_across_2_consoles/