So, recently, I bought an nvme ssd to replace the very old ssd I have on my laptop. I don't know what the non-nvme is called. It shows as "sda" on the system. Anyway, doubled the storage. The new drive is an nvme WD black SN770. I have the same one running just fine on an optiplex dell mini running endeavourOS. Zero issues. I like to separate home and root partitions and have btrfs on root for snapshots. So, thinking it would behave the same on the laptop, I put the new drive in the laptop and did the same partitioning. Installed Fedora this time, since I like gnome on the laptop and plasma on desktop. Everything went fine. Laptop was responsive and all until I was done and closed the lid. Came back a while later to use it again, black screen and nothing revives it. No key combo or anything works except holding down the power button to shut it off. This kept happening every single time I closed and opened the lid after a while. Thought it might be the distro/DE. Removed fedora and slapped endeavourOS with plasma on it. Same shit happens now. Black screen every time I open the lid after a suspend. So, I decided fuck it, let me juse use ext4 since it happens on every distro. Removed btrfs and used ext4 on all partions, and now this issue never happens. Not even once. Is this a known issue with btrfs and nvmes? Do they not like each other? Just wanted to share this little dilemma I had to deal with the last couple of days.
Can confirm that btrfs on nvme with sleep/suspend has been working fine for me on my Framework laptop (haven't tested hibernate, though).