Have. I like btrfs, you only get that with Oracle and they have philosophical issues, but also random brokenness with things like selinux policies.
Old packages aren’t really an issue for me, but missing packages that haven’t been put into EPEL can be a pain. Depends what you want to accomplish or need.
I feel similarly about Fedora’s quick EOL, which was how I got onto an enterprise desktop distro too. The paper cuts are why I ended up switching to Mint.
You can use btrfs with any distro. It's just easier to install on some than others. Ubuntu and Mint will automatically create subvolumes for root and home if you install on a btrfs partition. With Debian, you have to manually create and mount all of the subvolumes before starting the installation.
It was available as a technology preview in RHEL 6 and 7, but dropped in 8. There apparently wasn’t much demand for it, and the reputation of BTRFS isn’t exactly synonymous with the image of reliability Red Hat strives for. There’s also the idea of maintenance and support burdens, and Red Hat themselves have launched their own stab at a fs with an integrated volume manager called Stratisd, though IBM supposedly absorbed the team that was working on it for their own products.
Just in time for Fedora to use it by default and create some interest. I get the maintenance burden though, RHEL patches their kernel like crazy. They still use XFS as default which I think is pretty unique at this point.