While trying to implement ALM for the Power Platform, I attempted to use a multi-environment model. What I discovered was that while trying to move my Flows that utilized the "SharePoint - For A Selected Item" trigger, to my "development" Power Platform Environment, they would NOT show up after a SharePoint list item is selected. Meaning, those flows will only work in the default environment.
This seems very short sided, and I suggest a fix is put in for this asap!