Gamma does not release memory when closing a patch

I see this behavior in 2021.4.10

Steps to reproduce

  1. Open gamma
  2. Open Taskmanager and Observe Gammas Ram usage
  3. Open the Help browser - learn tab - type skia
  4. Open the Drawing primitives Help patch, on my system, Ram usage increase by approx. 5MB
  5. Close the Drawing primitives help patch using ctrl + W, Ram usage does not fall.
  6. repeat steps 4 and 5 and see memory usage rise.

I have seen this with skia patches, but same bahavior can be observed when creating and closing new empty patches, here it is just around 0.3MB

Can anyone else confirm this behavior?

Same here.