I have been trying to figure out what the status of BTRFS support is on Qubes. There are a lot of forums posts reporting increased performance and I was able to install the latest RC with BTRFS instead of LLVM thin provisioning. However, it is not the default and many tickets referencing it have been assigned TBD milestones.
I installed it and it seems to be working fine. Is it going to blow up on me? What are the sharp edges?
I have been using it for 3-4 months now, I have not had any issues.
There is a difference in how disk size is displayed in applications like qubes manager and backup tool, with btrfs they show the size of vm + template with ext4 it’s just the vm, but it doesn’t make any practical difference.