The latest version of the SDK is provided as an XCFramework and is no longer a fat framework. However, another developer here: Xcframework does not contain arm64 - #3 by lucas has been experiencing issues building to simulator on the latest version using the M1 chips. The team is investigating. However, the latest version should build to device.
Sure thing! The frameworks are no longer located in the GitHub repo and have been moved to the Zoom Marketplace. Log in with your developer credentials, then click Develop → Build App → SDK → View here → Download.