I doubt doing oVirt is a million dollar idea. One of the biggest reasons for going with oVirt was redhat being behind it. rh will keep rhev on life support for its customers (thus staying in competition for a bit longer) and there are plenty other more popular opensource alternatives already. I mean, sure making millions isn't impossible, but you would not need good software so much, but good connections instead to make it work.

Yeah, Red Hat put a fair bit of money and investment into a direct VMware takeout using oVirt/RHV. Pretty much went nowhere. There's presumably some money int here post-Broadcom acquisition but Red Hat is mostly betting on Kubevirt and OpenShift. Some (presumably smaller-scale) customers will prefer more of a like-to-like lower-cost replacement but personally I wouldn't bet on it as a business.