Tag not monitored by Microsoft.
Microsoft Learn courses do not provide a downloadable certificate just for completing the course. For Microsoft Learn, completing modules earns badges and completing learning paths earns trophies.
For the Microsoft Power Platform Developer course specifically, if it was taken as an instructor-led course, a course completion badge can be claimed by redeeming the achievement code provided by the instructor.
A certification is separate from course completion. To earn the Microsoft Certified: Power Platform Developer Associate certification, the required exam must be passed.
Achievements can be checked here: https://learn.microsoft.com/users/me/achievements