virtiofsd is used to "passthrough" parts of a host filesystem to a virtual machine with "local filesystem symantics and performance". Proxmox moved to a rust based version of virtiofsd in PVE 8 located here. It's installed as a separate package called "virtiofsd" in PVE 8, whereas a different, non-rust based version of virtiofsd, was "included" in PVE 7.x. Note there are several front-ends and back-ends that can be used. What is documented below works for me. Make sure you test...
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