[Borgbackup] Rebuilding missing manifest - how long / Progress missing?

[Geek]

>> 6369923 orphaned objects found!

> Lots of chunks that are "unused" - likely due to missing metadata chunks.

Will  it  remove  them  all  now?  How big is that in GB? This is what
--help says...

>> It  still  runs  though  and I have no clue what it does... Rebuilding
>> archives?

> borg check --help

RTFMed,  thank  you.  Lack  of  progress  indication  nor  any sign of
starting the next step is a bit confusing.