Wisej 2.5.16 dozens of msedgewebview2.exe

They are subprocesses created by Edge.

After closing VS they should all be terminated.

When you open a designer it will create the parallel renderers number (if you have it at 6 then it creates 6 subprocesses). When you close a designer the renderers are NOT disposed immediately, they are pooled and disposed a minute later unless reused by a new designer.

If you close all designers and keep visual studio open you should see the renderers get terminated after a minute or so. If they don’t there is a leak that we cannot reproduce.