As a PC user, will you always be reported as online via the xbox app?

I recently logged into the xbox app on my PC to be able to better communicate with an xbox player (buddy A). I'm also always shown to him as online via his xbox when I'm playing the game that we always play together (but only when I'm not playing something else). My question now is: If I log into my game account with another buddy (let's say buddy B) on the PC, my other buddy (buddy A) will continue to show me online on the xbox, or only if I'm also logged into the xbox app with buddy B on the PC?

Yes you will, but you can also deactivate it