FXAA does (mostly) remove aliasing, but it also blurs some things you may not wanted blurred. I think I prefer it off, but it would have to be used in a real game scene to know, and you’d want to for sure only apply it to the 3d scene with all UI kept sharp and drawn on top. With a game animated and going around in a world the hard edges can be more annoying. Will try other options soon. All of them have pros and cons. The best looking ones are not at all possible to use on mobile but could be used on desktop versions and allow the user to config their use. This version of FXAA should be mobile safe.
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