Whonix via flatpak?

Hello, I’m in a highly censored and restricted area with a high threat model and I really require Whonix. In the process of doing some research before installing it I concluded that Whonix on top of Secureblue is the safest setup. However, in the meantime, I’m running Fedora KDE (atomic) as my main setup and I’m wondering if I can run Whonix as safely and privately as possible within KVM? Do I need to run it, again, via flatpak? Or do I have to do some modification in order to make it work? I tried layering the virtualization before but ran into a series of errors which I couldn’t resolve on my own so I winded up removing it altogether.

I’d be appreciative if someone could guide me on what’s the best measure, and help me run it from scratch! Thanks in advance

Have you tried using GNOME Boxes? It’s officially available in Flathub: https://flathub.org/en/apps/org.gnome.Boxes

I haven’t tried using it on KDE, but worth a shot.

Install on a USB is easy.

If you are in a ‘high threat model’ the chances are you cannot win.
Judging by your advanced and colloquial English skills, I would guess you are in UK, USA or Australia. They all have exceptional technology,

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The problem is that afaik whonix doesnt really support libvirt/kvm/qemu for whatever reason

Have you tried oniux? Do you really need Whonix, or just a tor router for anything?

On atomic desktops I would install it by installing cargo and then oniux

cargo install --git https://gitlab.torproject.org/tpo/core/oniux

Oniux has no isolation between router and client, but uses arti which can be assumed more secure than tor due to memory safety