It's not Netdata "cloud" but yes you'll have all the hosts automatically appear in XOA local Netdata install (as soon there's data present)

@rjt The November 2019 security, bugfix, and enhancement updates address this issue in the section "Enable increasing max_grant_frames for guests." Indicates that with not enough grant frames, the guest VM will not be able to use the all the virtual NICs that it expects. Still wonder if increasing max_grant_frames would speed up existing network interfaces even when they have enough working vNICS.