Amount of disk space used by a particular snapshot

[Wiserrhino]

Is your feature request related to a problem? Please describe.
It would be great to know how much space a particular snapshot is taking up. This helps to prioritize which snap shot to delete first when disk space runs low.

Describe the solution you'd like
The ability to right-click a snapshot and then select something like "properties" to get more detailed information.

Describe alternatives you've considered
Other backup methods. I don't really like any of them.

Additional context
No other contextual information is relevant, other than I run Linux Mint 21 with Mate desktop.

[teejee2008]

For BTRFS snapshots you can enable qgroups which will display a column with the actual size. For Rsync snapshots it is not practical to estimate the size due to hardlinks with other snapshots.