Forcing always to print no matter how thin
Is there a configuration setting in PrusaSlicer to always print all walls/outer surfaces no matter how thin they are? I am shrinking some models and the surfaces are disappearing. I know it may cause some distortions, but I would just use it selectively on certain objects.
I think you are out of luck,
however there is a way of distorting models a little,
XY size compensation increases the thickness in X and Y dimensions, if your model can stand the distortion it may well serve your needs
smaller nozzles also help address thin elements. but there is always a minimum size....
What about Detect thin walls as a first step? It allows you to print walls smaller than 2 perimeters. But in my experience it can cause defects elsewhere so I don't use it by default.