A desktop running a low usage wouldn’t consume much more than a NAS, as long as you drop the video card (which wouldn’t be running anyways).
Take only that extra and you probably have a few years usage before additional electricty costs overrun NAS cost. Where I live that’s around 5 years for an estimated extra 10W.
From France: news outlets began parroting government stating GrapheneOS is used by narcos.
GrapheneOS reacted strongly.
However, France is on a very shitty auth-right trend (including arresting Telegram founder) so the reaction is very understandable.
French billionaires are actively promoting fascism, headed by Bolloré who owns a TV station similar to foxnews and has a neo Nazi body guard on his private island.
French police is killing more people every year, with little to no consequence. French protests have changed from family walks to full riots as police attacks peaceful protests (a recent leak shows amongst other things a riot-cop telling his officer during what can only be described as a battle that protesters have children amongst them, officer replies that it’s what you choose when protesting).
It’s not about tech, it’s about control of the masses so they don’t rebel.
man /s
Linux has come far enough that you go just go at it, and search forums for any questions you still have.
e.g. just search “how to install [distro] linux as dual boot”