Running teams installer result in opening github and not installing microsoft teams

I'm installing microsoft teams by go to teams website and downloaded the installer for windows, then i choose the one for work 

Everytime i launched it , it open my github desktop , it didnt even install teams afterward 

How do i install teams then ? I tried installing from microsoft store and get the same result 

Here is the demo

https://youtube.com/shorts/ieaXaHaYLIE?feature=share