I am not sure if we can really share those badges after completion of MS Learn module and anyway, anyone can complete the module and have the badge easily so these badges have less importance than the badges earned by passing Microsoft certifications.
After passing MS certification exam, the badge that we get can be shared on social platforms like Linkedin, FB etc..
I have the below badges and if I open any of them, I see options to share them on Social sites
You can post the same question on forums given in answer to your earlier question in below to check if MS Learn badge can be shared
Please don't forget to Accept Answer and Up-vote if the response helped -- Vaibhav