You can streamline communication in Microsoft Teams using Power Apps by providing users with links to initiate calls or start chats, guiding them seamlessly to the appropriate Teams pages

Table Of Contents:
1. Creating Responsive Design
2. Adding Message Functionality
3. Adding Call Functionality
Step 1: Creating Responsive Design
a. Add Horizontal Container and use placed it as shown in figure
b. add messages icon and calling icon
c. add image and make image property to user().image
Step 2: Adding Message Functionality
a. select message icon and go to on select property of icon and write below formula
Step 2: Adding Calling Functionality
a. select the call icon and go to on select property of and write below formula
You can Also check youtube Video: