I noticed in the install.sh of GSR, that setcap cap_sys_admin+ep is called on the executable. So if you know any way of replicating something like that for flatpaks that is simpler than installing GSR manually, feel free to let me know.
You can just run the same command on the executable installed by flatpak. On my system it can be found in /var/lib/flatpak/app/{app name}/current/active/files/bin.
Yea just go ahead and remove a violent oppressive regime that has a history of murdering and imprisoning even its non-violent opponents and has hundreds of thousands to millions people in police and military on their disposal to defend it. Great fucking plan.
dd’ed an ISO onto the system drive instead of a USB stick. Luckily, the first partition was the Windows one, so not too important; and the rest I recovered from the GPT backup table.