What is Reddit's opinion of Boom 3D?

From 3.5 billion Reddit comments

I use Boom 2, just be sure to turn the "boom volume" down to 0 if you use it. It lets you save multiple settings (so you could have one with pumped bass and another with emphasis on vocals, for example) and mess with the sound in other ways, too.

No, I do not have that installed nor have I ever installed it. Now that you remind me, I had something called Boom2 for a very brief period. https://www.globaldelight.com/boom/index.php but I'm not completely sure if I removed it entirely.

Even more Pro tip:

If you have macOS use this app: https://www.globaldelight.com/boom/index.php.

It's thousands of times better than any tip you might give to flip switches in the app(s)