go to settings.
click experimental branch on the bottom right.
in the textbox under the button type "freelook" (without the quotes)
Luanch and you now have free look!
[GUIDE] How to get freelook on lunar client | Hypixel - Minecraft Server ... hypixel.net > threads > guide-how-to-get-freelook-on-lunar-client.3642987
When activated, allows you to change your camera perspective without rotating your player. When holding the hotkey, you will be able to look around without changing your camera perspective. ...
Freelook - Lunar Client Support
moonsworth.kayako.com > article > 44-freelook
Lunar client is allowed.
can i use lunar client in 2021? | Hypixel - Minecraft Server and Maps
hypixel.net > threads > can-i-use-lunar-client-in-2021.4121707