Thanks for the details. Regarding the issue, I have reproduced the issue in Win 7 system. The top panel disappeared when I share the desktop.
But if I hang the cursor on the top of screen, the red frame would be broken. And I could Stop presenting or Give control when hang the cursor on the location of the "Give control" "Stop presenting" button of the panel which means the top panel is transparent,
it does not disappear.
Here is the top panel in Win 10:
Please confirm this situation from your side and I'll do some further investigation.
Also, may I know the detailed version of Win 7 & Teams from your side?
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