Team client launching issue

Hi,

Our users when they click on a link to a document on Teams or meeting ,opens in browser instead of client

this is an known issue but when they click an option "already have Teams app ?Launch it now "  nothing happens  , teams client never opens 

Identified as this can be due to Default app settings in the system , when we select to mark teams as an default app , its only pointing to Microsoft store  but 

Any idea how to make Teams as an default app ? are there any settings in registry?