Comment by proberts

Historically, travel while in F-1 STEM OPT status after the approval of an H-1B change of status petition and return prior to October 1st would not impact the change of status request. It's not clear how USCIS is going to view this now so given the uncertainty and the repercussions if wrong, we are advising our clients to remain in the U.S. from the time of filing the H-1B petition until October 1st (or even later if the petition isn't approved by then).