I've been using Lunar on and off since I think late 2019, and since then I have noticed 3 removals from LC that most people didn't want removed at all (me included), this thread highlights those 3 features, would be nice if they all got added back.
(1) Old Lunar Block Hit Animation
The old Lunar block hitting animation was extremely unique and cool, I actually never knew it wasn't intended as it was "inaccurate" like that, it seemed like it was made like that on purpose cuz it was genuinely very unique and clean, it would be very cool if there was an option to add this old block hit back, here is a video that shows the old Lunar block hit https://youtu.be/sTdrfyy8H_4
(2) Always Swing
This was a simple visual animation that made it look like you were always swinging even if you got the hit penalty, I think I speak for everyone when I say this should be added back.
(3) Skybox
A lot of people have very bad PC's and therefore can't use a custom sky, the Skybox is a Vanilla Minecraft feature that turns the bottom part of the Sky into a Deep Blue color, I really liked this feature and it looked extremely clean, however one day it was randomly removed from Lunar Client, I know it causes issues with custom skies but there should be an option to turn the Skybox On or Off, I attached an image that shows the Skybox