Is playing FFXIV on Linux against ToS?

[Alicie]

The TOS is worded broadly enough that, if SE is really motivated, they can pick and choose any number of reasons to ban you. They could attribute it to the compatibility layer you use to run the game or any number of other things.

SQUARE ENIX MAY SUSPEND, TERMINATE, MODIFY, OR DELETE FFXIV SERVICE ACCOUNTS, CHARACTERS, VIRTUAL GOODS, OR THE SERVICE ALTOGETHER, AT ANY TIME FOR ANY REASON OR FOR NO REASON, WITH OR WITHOUT NOTICE OR LIABILITY TO YOU.

They don't need a reason. They can just get rid of anyone.

[MayuAmakura]

If your linux distribution doesn't spam trigger words when playing the game, then no you won't get banned. 'Cause that is all that matters in this game. any 3rd party tools, plugins or OS don't matter at all. Play on whatever you want.

[Selsix]

My man, there is a SIZABLE population in this game using third party apps to turn the entire experience into straight up adult content with fetish tier modbeast characters and/or third party tools that monitor DPS and basically do fight choreography for them and you're concerned about whether using Linux to play is gonna get you banned? You're completely fine, trust me. They don't care about actual cheaters or perverts enough to chase them all down for breaking ToS so there's no way they are gonna give you a flogging for playing on a different operating system whether it technically violates the ToS or not.