honestly, the grinding experiences didn't change much, instead of grinding xp pre99, now one has to grind 2 more, master jobs to 2100 job points, then master level, which honestly are much tougher.

So yeah, like previous comments, it's really best just to PL jobs u need to 99 @ escha zitah, provided one got access far enough into Rhapsodies, then grind skillings needed to cap, which either by manual or taking advantage from skill scroll purchase-able @ Record of Eminence npcs or hoard them from auction house since they usually been very cheap anyways. After that, get some prelim i199 gears either from joining daily Domain Invasions which capped at 100 points, and/or ambuscade spamming, before one can actually able to start grinding on those master jobs, coz one need quite hefty amount of accuracy or else will be having really hard time. Or... if lucky enough having someone helps, getting prelim odyssey gears will be a tremendous boon.

Also again to reiterate above posts: reddit are much more active, especially since it also has dedicated discord as well, where one from there can find a much more in depth group one can leisurely enjoy.