This subject is why ff14's raid design is either "The best" or "Objectively shit". The way the game is designed pits healers and tanks against one another; DPS are sort of a third party in this wheel of hate.
Since ff14 designs everything as "Everyone is just DPS with side abilities", and enrage timers in Ultimate and Savage are so tight that you simply can't behave otherwise, tanks and healers are naturally pushed to be at each other's throats.
Tanks using that extra oGCD/GCD for DPS over mitigation (e.g. another Holyspirit vs a clutch life-saving Clemency), and healers playing sketchy with everyone's hp to edge in that extra 50dps for FFLOGS GLORY PARSES creates (and encourages, actively) a wildly toxic and adversarial atmosphere.
This means, if you're into adversarial design and being toxic to everyone, it's brilliant. Or if you're hypercompetitive with a pack of tight friends and can all coordinate each heavily choreographed fight out to every single CD/second of time.
But if you're from any other MMO, or believe in "Being a tank as a tank" or healer as a healer, you're in for a world of retarded pain and abuse.
FF14 is quite literally 8 DPS players DPS'ing and also some of those DPS might have abilities that can sometimes be used to either reduce damage, heal damage, or keep the boss facing a certain way.>t. guy who' raided pretty 'hardcore' in every mmo for like 20 years, yeah i have no life fuck you too, smoking brb