There have already been tons of these posts, but I figured I'd take the opportunity to add some of my own data points. It feels like I got pretty lucky based on the other numbers I've seen.
City Squares: 585 (including board setup, which was super messy to begin with)
ITF Encounters: 539 (based on this tracker).
Syndicate Medallion: 15
Veiled Chaos: 115
Paradoxica: 2
I ran 5-5-2-2, doing Research encounters because they're not tooo slow. I didn't really care about safehouse rewards so I ignored everything except ITF interactions.
Most of the maps were run scoured because I also used the grind to go from level 90 -> 100. Once I hit 100 I started running 8-mod corrupted maps, but it wasn't enough maps to confirm or deny that quant makes a difference.
I usually focus on a single build each league, so I'll probably use the Mageblood to transition my KF Totems Hiero to the strength stacking version. I've already got a Simplex + Wilma's + Iron Fortress so I just gotta grind out some blueprint with the Replica enchantment to get the Alberon's.