Implement "shake mouse" a11y feature
macOS has a useful feature (which I believe is enabled by default) that makes it easier to find the mouse cursor by moving it back and forth, a better option than running xeyes ;)
macOS implementation: https://appleinsider.com/articles/21/06/29/how-to-find-your-lost-cursor-by-making-it-bigger-in-macos
shell extension: https://github.com/jeffchannell/jiggle