Full disk encryption is an important feature for me. Many mobile Linux options lack it outright and those that have it can make it difficult to setup. FuriOS on my FLX1 not only has it but it is very easy to setup. You literally only have to go into Settings>Encryption, toggle Encryption on, choose your FDE password and the reboot. After that eevry time you boot the phone you will have to put that password in. Why every mobile Linux distro can't implement it like this I do not know.