I cannot stand Forgotten Realms. Never liked it going all the way back to 2nd edition.
Greyhawk was a MUCH better setting, with a more cohesive vision and CERTAINLY a much more interesting cosmology
Forgotten Realms is a hodge-podge of 20 settings glued together with zero appreciation for thematic crossover that has been revamped and rebooted so many times that substantial class mechanic differences DEPEND ON WHAT ERA YOU ARE PLAYING IN! That is fucking INSANE
Greyhawk presented an eternal timelessness where you could drop in on any era without having to read 5+ years of errata notes on why they renamed the negative energy plane and whether or not you are allowed to cast anything above 3rd level
The Great Wheel was, is, and will ALWAYS be the most fertile and relatable cosmology that has ever existed in a d20 setting and they changed it purely for CHANGE’S SAKE!
TL;DR: Fuck Forgotten Realms, LONG LIVE GREYHAWK!
I thought this was a pretty common opinion these days, but maybe that’s just in my information bubble.
I have had some struggle trying to find a Greyhawk campaign to join, it’s kind of fueled this post
Yeah there isn’t much official content for it in 5e.