Shared folders are easy with Linux guests, you just set it up in virt-manager and then mount it in Linux. With windows it's possible and I have done it but you need to install the virtiofs driver alongside winfsp and then make sure the virtiofs service is running. So the setup is definitely a bit obtuse. I haven't done clipboard sharing deliberately as I don't love the idea of that being synced but I should at least try it so I know what setup is like. The file sharing isn't hard once you learn how to set it up but figuring it out the first time is a challenge for windows guests.