Originally Posted by
SparkyCanada
Not sure I fully understand what you mean by “different kind of stability”
Longer stem increases the rotational inertia of the steering assembly (wheel/fork/bars).
And forward pressure on bars with a long stem tends to straighten the wheel more so than with a short stem.
And a longer stem requires more handlebar movement to turn the wheel.
https://cyclingtips.com/2015/03/how-...-and-handling/