OpenOffice has more or less been dead for a while. Check out LibreOffice, its spiritual successor, or OnlyOffice (which people have opinions about because it’s Russian developed [I think the guy is actually Latvian]).
Also, my vote is for Bazzite. Gaming based and works out of the box with constant updates as long as you restart your computer with easy rollback if something goes wrong. Hard to break your computer, but if you like tinkering it’ll have to be containerized.
Desktop is an important choice for look and feel so check out the difference between GNOME and KDE the two main variants.
Are you looking for Docker Desktop specifically? Or will docker/podman work for the time being? If you don’t already have it, bazzite-dx comes with docker pre-installed, which would be a simple rebase to get you there.