I'm upvoting this because I agree that transparency is needed.

Case, TrackingID# 2208040030002218, I raised when our UAT and Production systems both started encountering errors one day despite us not making any related code/configuration changes in either environment, I eventually narrowed it down to a flight that via the case, I was informed that "...I have received feedback from our engineering team, this flight InventCountCreateUseItemBaseTasksFlight has been disabled in last night as we enable it by mistake in last day for all customers..."

So the flight was unknowingly changed for all customers with no notification of either the initially mistake, nor the resolution.

The problem affected us more that most customers I assume because we had customizations around the area where the flight involved affected functionality, but it's scary that our production environments can be changed without our knowledge, and no way short of going through the support process to learn what was done.

This is not the first time we've had issues related to flights, and had concern over visibility.

When I asked "Is there any way we can find out when these kinds of changes are being made to our environments, to make it easier to identify the probable causes of resulting issues?", the response was that's a current limitation and to submit the request here on the Ideas site, but I figure it's better to vote up this existing one than to create what would essentially be a duplicate.