Target Info (Status) needs better customisation
Being able to break the target information (HP, Progress Bar and Status) was a great quality of life, however, the status bar UI still leaves a lot to be desired.
With playing Bard, a primary example of a job which does depend on refreshing and maintain DoTs, I am glad that I'm able to increase the size of the Status info but often the amount of debuff on the enemy can vary drastically from solo play to hunts. This makes it difficult to get the debuffs for me to be a comfortable size without it clipping over other UI elements during the larger content.
There has been a way to turn off other player's debuffs, but there are times when you wish to see certain debuffs performed by other players i.e. trick attack, reprisal, etc.
The culling of resistance debuffs has helped, but I wish we had more flexibility in this area. There are some debuffs that everyone except for that individual need to see, such as Bard's DoTs, Summoner Bio / Miasma, Black mages Thunder (you get the idea).
I wish there to be an option to have different tiers of which debuffs would appear. This would range from Personal (only yours as currently implemented) Party Utility (Reprisal, trick attack) and All (shows every DoT applied).
There might be a reason to have more flexibility than this, such as only showing DPS beneficial ones like trick and chain, and only showing damage reduction ones like feint and reprisal (but personally for me, they both seem important for all roles).
Feel free to suggest other alternatives and hopefully something like this will be added to the list of QoL! I think this area would help tremendously and probably has been suggested before.