Yeah. I only use it in Fedora because it was one of or the default partition scheme or the recommended one, can’t remember. But I’m impressed with it, actually. Enough to make me try to learn the basics, in case I have to install another distro.
Fedora adopted it as default with Fedora 33. SUSE has been using it as default for many years now. Facebook is one of the largest users and contributors to btrfs. It’s a solid filesystem when it’s not used to do things it warns you not to do.
It’s not that I don’t trust it. I’m sure some years ago it was the base of some distro in my laptop. The thing is I’m more old school in terms of filesystems and partitions. I need to learn how to use it properly to enjoy its advantages.