I run an 8 disk 90tb BTRFS RAID0 and its been going strong for over a year. I hesitate to actually encourage anyone to live this dangerously but its mainly a media server and if i needed to i could restore any lost data from usenet or torrents using my arr stack which is on a different drive. If you can handle the risk its a nice speed boost.

Its not up to grapheneos devs which devices support bootloader relocking with different keys, literally only pixels allow this and without it you cant properly secure the phone.