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CurseForge Link
https://www.curseforge.com/minecraft/mc-mods/more-sound-config

Mod description

Sound Device Options is a very small but handy mod. It allows you to switch the active sound output device while the game is running! This is useful for people who have a speaker and headphones attached to their PC and want to switch between them without needing to restart and chaning the primary sound device in your operating system.

Why would you like the mod added?
Another little QoL mod:
Loading mod packs takes some time. But when you forgot to change the correct sound device in the beginning you need to restart and this takes even more time. (:
This mod helps out really much.

Greetings

F3 + R reloads the sound if you need to change sound output

F3 + R reloads the sound if you need to change sound output

Ah, didn't know yet. Thank you!
It's still a handy Mod so you can play minecraft on a seperate audio device than your windows might be on (niche case).

I'd rather have it just work than the user having to know the reload audio keybinding :)