http://sguidehudqqz47aavor3n3ezztia4l6wwnsjbralniymrd6n5sn55vqd.onion/mac-windows.html
Mac and Windows can both be substantially hardened without switching away, and the result is genuinely worthwhile. This guide meets you where you are. It covers the telemetry problem honestly (both Mac and Windows leak; Windows more aggressively), walks through the practical hardening steps for each platform (settings, services, defaults), handles the trickier parts (disk encryption done properly, the third-party apps that quietly track, the system updates that re-enable...