Did you use a guide to 100% all the areas? Either way that is REALLY impressive.
I made it to about 98.5-99% completion on my own within 175 hours and used a guide to find remaining quests and tyrant locations. There was one tyrant in particular that I could never find the linked info piece for that turned out to have a certain weather condition, the one in the Weeping Whitewood. Another tyrant in Cauldros was always available, but there's two other tyrants in the area that I thought would have been the ones to count in that slot. A few quests have rather obscure ways of starting them, not all of the quest markers on the world map are linked to quests you can start in NLA and are also not always linked to the position where you start the quest. There's multiple quest markers in Sylvalum that are started in Oblivia from characters that only appear at a certain time of day. One quest involving a Nopon marriage in Sylvalum also had a rather obscure way of kicking it off that I wouldn't have figured out without a guide. Oblivia and NLA were all completed 100% without a guide for anything other than heart to heart times and locations. Primordia needed a guide for one quest, Noctilum and Cauldros for one tyrant location each (as well as a guide I found online for fighting the Telethia with the Ares 90 solo), and Sylvalum for three or four quests.
My final mark on the map was actually a sidequest in Primordia that starts out on the other side of the continent and has you kill a level 8 monster. It was kind of an underwhelming way to finish off the survey of Mira.
EDIT: Forgot that I also looked up help for stage four of the duel questline, since I was having trouble finding where the guy was in Cauldros to kick it off.
EDIT 2: Also one of the Professor B quests I used a guide for to find one of the collectibles. I'm pretty sure it's the only time I had to use a guide to locate a collectible location for a sidequest, the rest I figured out on my own (the game actually tells you where to find a lot of them if you talk to NPCs) or I already had the item in my inventory.