I had a bad experience with in around 2014-15 on Ubuntu. 3 different laptops in my house suddenly stopped working (didn't boot at all) within the time-span of a year, 1 laptop faced the problem multiple times. In all cases, I had to format the root partition and reinstall Linux. All 3 had btrfs for / in common.

I moved back to EXT4 and it never happened again since then.