WebSDK automatically connects via Computer Audio; need to prevent that

I am an employee of SHL Global and one of our products Smartmeet uses Zoom Web SDK version 2.2.0 as the video provider. But, the problem is that whenever a person joins the meeting, they see the options on startup such as “Phone Call”, “Computer Audio”, “Call Me” but “Join Audio by Computer” gets automatically selected. This also happens in your sample angular app as well. Please, help.