There's a "mirror my video" setting. https://www.freetech4teachers.com/2020/04/how-to-reverse-mir...
What that option toggles what you see when you look at yourself. The audience always sees the unmirrored video.
This is not clearly explained in the documentation. However, it is mentioned here
https://support.zoom.us/hc/en-us/articles/204065759-Zoom-Roo...
for example, where they say of the option "Note: You can tap the Enable video mirroring option if you want a mirror effect for your own video display (where the display of your own Zoom Room looks like a mirror)."
It would also look weird to everyone else if it were, so they see your normal image.