Creating a Linux partition on my backup drive. Thought I'd use BTRFS. Turns out I can't, because I don't have btrfs-progs. Okay, I'll install it. But
1. The fact it needs special installed support kinda spooks me. Should I worry about someday a Linux machine I want to work with just flat out not being able to use BTRFS?
2. Is it possible to make an unencrypted/non-LUKS drive and have *individual folders* which are encrypted within the drive? Can I do it in ext4? Can I do it in btrfs?