bingo! I was in fact webkit. I mistakenly assumed it was flatpak when I saw the flatpak files in the RPM from fedora for evolution. Man I hate Webkit more and more every day. I am eventually going to have to stop using evolution because of it :(
I still have the long standing issue of Webkit not utilizing SMP and it taking several seconds to render a reply window on very large HTML email replies. It has been years, but I still cannot get used to having to wait to start typing a reply with CPU usage sitting @ 100% on a single core until it finishes, but that's a separate topic.
Thanks again Milan -