Going to the door to sniff the outdoors vs. potty

We got our now 7 month old pup in early February. She was somewhat potty trained per the rescue but with some routine they thought she’d get there quick. She had a tumultuous early life without structure. She generally does well now but had a couple accidents this week. Her main cue is going to the door but unfortunately she also just loves going outside to sniff and observe the world. She goes to the door and acts like she has to potty because she knows we’ll take her. In the morning it’s especially annoying because she doesn’t poop right away when she wakes up, so we take her out most times and hope for a poop (and get nothing). Anyone have a method for how to avoid rewarding “I wanna go outside and I know you’ll take me” versus listening when she may have to actually go? lol