I don't think that's what was being asked.
You can sync browser settings cross-platform for several browsers, but you can't have OS-level integration because the OS's are from different companies. So you are left with cross-platform apps, which can do such things but only within the app.
Mind you I personally regard such OS-level asa "lock in" (a barrier to buying other manufacturers' products), so as a matter of principle don't use vendor-specifc systems whether the vendor is Apple, Samsung or anyone else (I take the same attitude to vendor-specifc payment systems).