A very important point : your future phone will most probably include a camera with optical image stabilization.
This kind of camera will be destroyed by the engine vibrations if rigidly attached to the bike... Especially if the engine is a single cylinder... especially if the single is a RE EFI
You need a vibration damper to keep a modern phone intact. A lot of people have destroyed their phone cam like that... myself included
QuadLock and SP Connect mounts can have this kind of optional damper. You also have additional accessories like wireless charger, adapter to plug it to the bike battery...
A QuadLock with the vibration damper attached to the handlebar :
SP Connect Chrome with damper :
Quadlock mixed with 1" ram mount :
Stem mount + vibration damper :
Quadlock with wireless charging module and damper :