How to leave bevels of an object (created in Blender) as they was created?

help please, when i scaling my object in unity (this object was created in Blender + Bevels), it changing bevels kinda weird and i want to leave offset of the bevels as they was created

Are you scaling the object non-uniformly? If so that is going to screw with your model, nothing you can do about it. Scaling objects non uniformly is generally bad practice.

In general if you need to scale something after the fact you do it uniformly or you go back and change the original model.

If you are scaling it uniformly and still are getting issues that makes no sense to me.

In that case you will need to provide example images/video.