I can't tell if you're astroturfing, but just in case you're not, your problems are pretty easy to fix.

To blur your background on Teams, go to background options while on a call. Click 'Blur'. Here are the steps if you get confused on the way:

https://support.microsoft.com/en-us/office/change-your-backg...

To start a meeting, either generate a meeting in the Calendar and it'll add a Teams call link in, or under the Calendar click 'Meet now' in the top right corner.