I guess I am asking. If I install Qubes 4.1-RC2 and let it update, would it be the same for the latest Qubes 4.1 ISO by date?
Or does [Qubes-20211120-x86_64.iso] have experimental features?
I am mainly experimenting, so promise of high level security not relevant.
Pretty much. In fact there are some machine that seem to only let you install the latest version of Qubes OS that way…
I wish… 
You will most likely end up with more recent packages from the Fedora repos…
They’d both end up the same after sudo qubes-dom0-update 