Wait til your table with all the checksums gets messed up on an “older” btrfs install. Happened to me on a VM because I didn’t know copy-on-write should be disabled for large frequently partially updated files. It also slowed that VMs IO down a lot.
Like most file systems, BTRFS is great if you know the edge cases. I recently moved to ZFS on my new work system, which has been a great change in terms of in-line snapshots and the like.
If EXT4 meets your needs, that’s awesome. If you understand how to use a different FS well or are willing to learn (and risk), I would also encourage other options as well.
I feel your pain man. Our university of 40k people did the same thing “from on high” and we ran into the same problems in our lab. We only had 4 million files to move into a Teams share. Which, btw, takes about 5 weeks to “sync” to OneDrive, which is how we were expected to replace our workflow instead of a shared network storage drive our lab owned
q_q