[HELP/CHECK] btrfs - Add new drive to the system

[BrutalBirdie]

Separate home drive

if you mean snapshot from /@ than it work only on same drive. You can check this in timeshift. BTRFS-Schnappschüsse werden auf der Systempartition gespeichert. Andere Partitionen werden nicht unterstützt. = BTRFS snapshots are stored on the system partition. Other partitions are not supported. [2020-12-21_17-39]

Well this cleared up some part of my question.
The snapshots will only be stored in my main drive /dev/nvme0n1p1 1TB