And yet I've never managed to install it on Ubuntu. It's built for Redhat and there's apparently a series of adjustments that must be made, which are slightly beyond my grasp as a DOS refugee still trying to figure out this Linux thing.
Just as a data point: I managed to install it a few minutes ago with no adjusments. I run Kubuntu 20.04.
FWIW Fedora (which uses the RPM package format) is an easy distributions to get going with these days (mostly as a result of the tight integration/testing done by the QA team and maturing foundation), so it's worth trying Fedora Workstation IMHO.