Reference: https://www.youtube.com/watch?v=7MxXmGOkeLQ

App: Screen Start = Navigate(AnotherScreenName) – not permitted
App: StartScreen= AnotherScreenName
App: StartScreen= If(condition, goToScr1, goToScr2)
App: StartScreen= IF(Param(“urlVarname” = “something”,goToScr1, goToScr2)
to test out add a variable to the query string
https://apps.powerapps…..9887….?tenantID….&urlVarname=something