In MacOS, Cmd-
should be the keyboard shortcut to toggle between windows in the same application. When Teams is front in a Safari window, Cmd- results in bringing up the Find and App pop up window. Please don't do this.

(seeing weird formatting, the editor is interpreting ` to be a quote or something. See the title - this is in reference to holding down the Command key and the top left key on the keyboard with the tilde)