I do not expect that my request/feedback would matter at all
I am not interested in getting notifications about such testing.
How can I opt out of feature previews?
 there are multiple reasons for that claim:
- note size of Microsoft and amount of feedback
- my already given feedback was ignored in the past
- in many cases where I would want change something my interest and Microsoft interest would be competing anyway, and I am not naive enough that Microsoft in such case would care what user wants