Yeast fertilizer

I'm a crazy serial gardener, if I'm not in it, I'm reading, or watching videos about it.  I stumbled upon yeast fertilizer. There's a lot of videos on it.  Some even explain what it does. On one hand it sounds plausible, it's easy, relatively inexpensive, I should try it.  On the other hand it makes me wonder will it encourage the right microbes?  It could take my garden that's actually doing very well this year and take it to the next level. Or it could throw things off balance, and have a negative effect.  I guess I must like to complete things. I always seem to ask why???   If I buy ladybugs and release them in my garden will they add a genetic diversity? Or will they mess up the balance of the native ladybugs I have?  Sorry getting off topic.
Anyway Is this bennafisel? Have you tried it? please tell me what you think.
Thanks

I'm not familiar with yeast fertilizer but now I'm intrigued! Is it something that is like an addition of NPK or something like a microbe inoculation?

In a similar vein, I do some homebrewing which ends up with a level of lees (yeast sediment) at the end of the process.

I currently add this to my compost as just another ingredient but I'm hopeful it might have some kind of nutrient content that would be beneficial to plants.

yeah i'll follow this topic. every time i make kombucha there's a bit of yeast dregs i'm basically dumping. should i be spraying this on my plants? adding it to my bokashi?

The gist is it does have NPK, and mineral values,  what they are is questionable. It's one of the things that make the this questionable no one seems to have facts, and there's a lot of different information.  They are also saying it's good for microbes.???
Everyone has a different recipe, but it all basically the same.  Yeast, a little sugar (doesn't matter what, it's just to activate the yeast) and water.  Some let it sit for a couple of hours, some say overnight, some say 24 hours.  They all say use it right away.
They say it's good for everything, veggies, herbs, trees, flowers, and to get your compost going.
I'm interested in knowing if what "they say" is valid.  Is it feeding the microbes that are in the soil? If so is it feeding the right microbes? Or does it add new microbes? If so are they the desirable ones?
My garden is doing great, so I don't want to do anything to screw it up.  That being said I'm always looking for ways to improve soil life, and the health and nutrition of what I grow.
Thanks