The icon is also “different”. One has the Microsoft teams logo in white on a purple background, the other has the Microsoft teams logo in purple on a white background (forgot which and which)

They do the same thing with PowerBI. THe cloud version is one icon, the PowerBI for Reports Server (aka locally hosted) is for the on-prem version. Pretty annoying.

I work with Teams (Business version) daily. Have never even seen the other one.