Anyway, some of the projectors I must use only have VGA inputs.
I bought this USB-C to VGA and my presentation was shifted over about 20%, cutting off the left side of my slides.
I tried a colleague’s adapter (different brand) and the same thing happened with his but worked fine with his Windows laptop.
Sounds to me like an issue with the resolution and/or aspect ratio. Have you checked the display settings? Does changing the resolution (in MacOS) for the projector address the issue?
It was keynote, so it didn’t really have a resolution.
However, the aspect ratio was 16:9, which I thought was the issue (should scale, but it was minutes before my department presentation and nothing was going right). I hurriedly converted to 4:3 but that didn’t help.