I just format them with Gnome Disks (that uses LUKS in the background and supports many filesystems) and use a strong (LUKS) passphrase that goes in the passwor

I just format them with Gnome Disks (that uses LUKS in the background and supports many filesystems) and use a strong (LUKS) passphrase that goes in the password manager. Has been pretty reliable and widely available.