How do I exit full screen mode in Screen Sharing?

I was stuck in PowerPoint on MacBook Air and no amount of hovering at the top worked. The three finger swipe was the answer. Many thanks.

There is a keystroke combo that I remembered trying a thousand times for Thunderbolt, it worked like a charm

Opt+F2, it immediately moved back to the main desktop, when I go back to screensharing, it instantly fills fullscreen again.

Opt+F2

Martin's suggestion is great for those of us who toggle frequently between the remote and local screens during a screen sharing session. Using a keystroke (or swipe) to toggle between screens is much easier than non-full screen mode in which you must click outside the screen sharing window to return to your local screen.

Thanks Martin & xcorlett!

It's been a while, but I thought I'd add to this. I frequently have this problem when I have multiple full-screen screen sharing sessions (and use a lot of ctrl-left/right)

This is a little worse because sometimes you want to close one without exiting screen sharing; and you don't want to just leave it around.

I found that sometimes the menu bar is associated with one of the sessions not currently on screen. If I toggle my active session and go to the top, one of them will always activate and pull down. At that point it seems to be 'fixed' and I can go back to the full screen space I wanted to close.

Worked for me, thanks.

⌥⌘X to enter observing mode followed by ^⌘F to enter/exit full screen mode.

I use a similar shortcut to exit Screen Sharing: ⌥⌘X followed by ⌘Q.