

i’ve read that many apps can be not just banned but blocked. now i don’t have a source at hand but i heard that russia blocks not just signal but also matrix, meaning that it doesn’t necessarily matter whether the app is open source. similarly i’ve read that deep packet inspection can block things like sslvpn and wireguard.
still, blocking delta chat is really quite difficult, as russia has noticed and got angry about, so there should probably still be a way unless the country also blocks all email communication
afaik that depends on the type of medium, where ssd are more susceptible to rot than hdd (and never use usb sticks). now this is just my guess, but i’d think that zfs with frequent automatic checks and and such will keep your data safer than an unplugged hdd