Maintenance: Defragmentation

I was wondering if this function should be done only when there is a problem, or if it’s beneficial to do it sub-annualy?

I’m not presently having any issues, but “back in the day” I used to run Defragmentation on my Mac drives using Norton. This is no longer necessary with APFS formatting (I’ve read).

What about “Rebuilding the Indexes”?

Note the description provided under the ‘Maintenance’ section about the focus/premise for the processes, regarding your Library responsiveness.

:musical_notes: :eye: :nose: :eye: :musical_notes:

I was just looking for some personal thoughts/experience’s from other members as to why and when they used these functions.