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Process › Speed› Accelerationaccel_to_decel_factor

accel_to_decel

Klipper's max_accel_to_decel will be adjusted to this percent of acceleration

Not used with Bambu Lab printers. Bambu Studio hides this setting when the printer is a Bambu; it only shows up with other brands (or with Klipper firmware).
This page isn’t written yet. Above is the official Bambu Studio description; the plain-words explanation, the interactive example and the typical values will come later.

Setting details

Where it is
Process › Speed › Acceleration
Program default
50 %
Type
Percent
Unit
%
Range
1 – 100
Visible in mode
Advanced

Read more at the official source

Bambu Lab wiki (index)
In your profile0.20mm Standard @BBL A1 · 50 %

In Bambu Studio, the profile 0.20mm Standard @BBL A1 sets it to50 %

Using another slicer? Look for the idea, not the name: in Orca Slicer almost everything has the same name; in PrusaSlicer or Cura it may be called something else, or not exist.