Brave mobile account

[techsuper]

Hello, newbie hope this works.
This has been asked many many times, but I don’t see a resolution.
WHY can’t I create an account and sync my stuff to an online account like Firefox, or opera or chrome, or … you name it.
Then logging in with a new phone, all the stuff is there. Yes, I can sync to a desktop, but I use the desktop for other reasons and don’t want the two intermingled. So a mobile sync and a desktop sync function that’s separate from each other would be awesome!
TYIA