According to my Activity Monitor all my Unity Editors are Apple Silicon-based, but something's triggering "this won't be capable with a future release of macOS", which again is why forcing devs to update their macOS to run the latest SDKs can be impeding to dev workflow
A massive pain point to iOS dev is the eventual requirement to use the latest iOS SDK, which gets hard-locked behind a new Xcode, which is hard-locked behind the latest Mac OS version, which you may have avoided upgrading for fear of desktop software incompatibilities.