A user has managed to bypass Microsoft's Copilot+ PC and NPU stringent requirements and get Windows Recall to work on Arm64 hardware. However, the user experience is laggy and slow, demonstrating the need for a powerful NPU.

source https://www.windowscentral.com/software-apps/windows-11/windows-11-ai-powered-recall-feature-can-run-on-unsupported-laptops-but-suffers-huge-performance-loss-without-copilot-pc-npus