I just went from Big Sur to Ventura (iMAC 2017, 21 inch). Before downloading, I off loaded some stuff to make room, emptied the trash, and had 118 gig available (screen shot). AFTER Ventura was finished, It now shows 141 Gig available! How does an upgrade make more room on my 256 gig SSD? (the first screen shot, showing 118 gig was from yesterday, when I was researching something else unrelated to upgrade)