After recently reinstalling there is few things interface wise that... I would like to be improved, if possible.
First is either a change or a self imposed toggle in some other setting that could go "always apply automatically" or something of those lines, for at least audio volume settings. I've for long time inserted shortcut to audio settings into my hotbar using it quickly to change volumes depending what I have open in background etc. But I usually do it in hurry and just close the window because the game changed the volume already, only reverting it if you close the window and keeping the setting if you click the separate apply button (or Triangle or Y on controller, luxury not afforded for mouse users)
If not changing this out right, at least a toggle somewhere to retain audio level settings without the apply button.
The other one is my sadness over ALT+F4 being lost. Now, new players, hear me out because it is not what it seems like. If you play PSO2 now, that it is finally out officially in West, you might want to try it in that game and see what it does - it has done it since launch in 2012. Final Fantasy XIV used to be the same until one of 2.X or 3.X patches changed it.
I am talking, "of course", about behavior where the ALT+F4 does not actually immediately close the game, but it would give you the "exit game y/N?" Prompt window that still exists if you just bind a close button to your hotbar.
Now instead it does nothing.
Unless this was done so people can make ALT+F4 hotbar/UI binds, I would prefer this functionality to come back, I use the button a lot in my computing, so may others. The original was already a great compromise in my view over current input "block" and nothing. I still to this day use ALT+F4 as my most common way to close PSO2, that prompt will always be there to make sure I am in situation that I can quit from and double confirm my intentions.
... Is it because I once quit the game for a year by ALT+F4:ing in dungeon? I promise to never do it again I swear.