Happy birthday, Pippi PugStocking!
Seeing as Pippi is 94.8% Pug and certainty for that match is 97.1%, we are confident she’s a Pug! We’d likely detect other breeds in her results at a higher percentage if they had been mixed into her pedigree recently.
Her looks may just be within the normal variation of Pugs. I saw a post recently on a dog DNA testing forum about a Pug like yours — longer nose, longer body, and taller — who also tested 100% Pug.