Q: Compute Missing AI Scores VS. Run Image AI Analysis vs Smart Re-ingest

Q: Compute Missing AI Scores VS. Run Image AI Analysis vs Smart Re-ingest

When I ingested my libraries, I generally decided to cancel the AI Analysis as it was taking a long time, and I was more interested in just getting my libraries in and start organizing images into some very specific albums. Some 'ingested' libraries have been fully updated with AI, but I can't see what's done vs what's not. 

Going back now, I'd like to update all my ingested libraries in the most efficient way possible. To do that, what is the difference between the following options when updating libraries?
Compute Missing AI Scores VS. Run Images AI Analysis vs Smart Re-ingest

My Peakto library is about 260K images created from:
2 - Apple Photo Libraries
1 - Lightroom v10 Library
18 - Aperture 3.6 libraries
3 - Watched Folders

Loving Peakto - Nothing like it ever, and realize you are just getting started. 
Thank you,

Paul Clark