Sidecar and M1 MacBook Pro

Dave_PGSD wrote:

My M1 MacBook Pro 2021 does not recognize my 10.5" iPad Pro for Sidecar. Settings for Sidecar are all in place on both devices. The macOS is 11.6, and iPadOS is 15.0.2. Anyone having similar struggle?

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I can't even get to an Airplay / Sidecar options menu anywhere. I'm on an M1 MBP 13" (2020) running Monterey and an iPad Pro 11" running iPadOS 15.1. What am I missing? Is it an issue that I already have two display connected to my MBP?