As someone who fits a definition of the causal who only rarely dips their toes into Extremes and is focused mostly on MSQ and DoL/H while also having a completist streak… I can say either a lot or a little. I do all the side quests and have all jobs maxed, and my Island Sanctuary is lvl 12. I’m only four legendary fish off from the Big Fish title (11 fish to max out the log completely) but I haven’t got most of the harder Ocean Fishing titles. Have all the BLU spells but haven’t done the various NoEcho Synced raids. As for Relic Weapons: grinded out all Anima and Resistance weapons but only completed ARR to Zeta once. Eureka have a few in the Hydatos stages but I haven’t bothered to attempt BA yet. Working on Manderville. Got all the Skysteel tools because I liked their glow and stats better than the gold Resplendents. I did on a whim go back through and complete all those singular FATEs or chains that have individual achievements attached to them - some were more painful than others. Have the Triple Triad card mount. Am still missing the four extra FF cards from the biweekly tournament. Haven’t done more than touch Verminion and don’t yet have a level ten chocobo. Mahjong? Lol PVP I’m also strictly causal but I suffered through Frontlines to get a plain-looking horse. Haven’t got to Floor 200 in PotD and only once to Floor 100 in HoH, haven’t gotten beyond the 20s solo.