What this is: hopefully a helpful resources for others. I compiled this resources for certain beginner problems I ran into on my way to switch all my fedora-xx template based qubes to fedora-xx-minimal template.
What this is not: a guide to tweak everything to the most minimal regarding RAM, CPU and HD usage.
Networking including wifi, usb, audio and video playback now works. Not surprising: most problems I ran into were due to missing packages.
Problems with networking in general: https://www.qubes-os.org/doc/templates/minimal/ –> Fedora
Problem template asks for password when using sudo (passwordless-root): https://www.qubes-os.org/doc/templates/minimal/ –> Passwordless root
Problem audio and/or video playback not working or very jerky: https://forum.qubes-os.org/t/video-playback-in-a-fedora-36-minimal-qube-is-much-worse-than-in-a-regular-fedora-36-qube-in-firefox-and-vlc/15977
Problem with installing from certain repositories (e.g. rpmfusion-free-release-tainted): https://forum.qubes-os.org/t/qubes-users-fedora-rpmfusion-repos/12907/3 https://forum.qubes-os.org/t/problem-installing-repository-rpmfusion-free-release-tainted-in-fedora-minimal-template/15976/5
further resource: https://forum.qubes-os.org/t/qubes-most-minimal-possible-setup/7865