How can a user choose between ext4, btrfs and zfs?

Question

linux

Good afternoon.
There was a difficult task of transferring a file cleaner from several large disks to a linux server on Ubuntu.
A natural question arose of choosing a file system: on the one hand, the well-known old and good ext4, on the other, CoW versions in the form of btrfs and zfs.
While their advantages are not entirely clear to me, namely the specific type of recording and the creation of snapshots.
The discs will contain mostly media files (photos/videos/music), filling at least 70% of the volume.
Data access is dynamic, that is, deletion and recording is not often, but it will be.

Wouldn't it hurt to have a small amount of residual volume for all CoW chips? Is it all necessary?
And if you still take a chance, then btrfs - stable or not? Or is zfs better?

Thank you))
If everything

Answer 1

If, playing with unfamiliar FS, you ditch all this storage, will you be hurt?
Then do not use systems whose operation is not familiar to you, and the benefits are not obvious.
If not, it's definitely worth a try. For the future we rise from sleep...

Answer 2

for home use it is already stable
if for the server it is still ext
but for the home you can indulge.

Answer 3

Put ext4, with it at least a little less chance of ruining your data.

Answer 4

file cleaner doesn't need zfs/btrfs