New YouTube Video Cautions on Using Hügelkultur?
I am a big fan of using the hügelkultur method in raised beds. I think it's absolutely the best method to fill my raised beds. It works much better for me than non-hügelkultur raised beds. All my raised beds in the last 3 years use the hügelkultur method.

Is it possible to do it wrong? Certainly. I mean, you would not put an inch of topsoil on top of logs and expect much to grow, would you? Anyways, I like to watch different viewpoints on methods I use to see what that person has to say. After watching this video, I wonder if his title is not just clickbait, because mostly he talks about the many advantages of hügelkultur raised beds but then goes into different ways to make sure it does not work. Well, don't do those things, I guess.
FWIW, I will restate how I successfully use the hügelkultur method in my raised beds. My 4X4 foot pallet wood raised beds are 16 inches tall. I put logs in the bottom 6-8 inches, cover that with finer stuff like wood chips or mulch, then a layer of organic material, topped off with 6-8 inches of a topsoil/chicken run compost mixed 1:1.
That initial 6-8 inches of topsoil/compost is deep enough for my tomato and pepper plants. If you are growing root vegetables, you would, of course, need more soil depth. If that is your goal, you could either dig a trench below ground level to put in your logs, and put more topsoil in the raised bed, or you could add another frame on top of the raised bed and fill it up with an additional 6 inches of topsoil where you wanted to grow root vegetables.
Every year my topsoil level in the raised bed gardens drop down 1-2 inches. That is the process of the organic layer and some wood starting to breakdown. That's a good thing. I top off my hügelkultur raised beds with fresh topsoil/chicken run compost. Year after year, that upper topsoil/compost layer gets deeper. Adding fresh compost every year gives the bed a significant boost of nutrition for the plants. It works great for me.
Here is the newly posted YouTube video on some things you might want to think about if you plan on using the hügelkultur raised bed method...