Can you use the old Apple Remote Control. The silver thin with battery slot behind. Use as remote control for Keynote or PowerPoint presentation. For the MacBook 2019. Do not always want to run to the laptop for presentations
No, to my knowledge that is not possible.
But you can use an iPhone as a remote control for the Mac with a corresponding app. I use https://cherpake.com/'s Remote for Mac Mac with the associated Remote • Pro App on iPhone. For remote control, both devices build a WLAN to each other.
I push you with the star a
Thanks for the star.