I used the have the ultrawide monitor on a shelf in front of me, but I wanted it a bit closer and to be able to use the space below the monitor. So instead I used some scrap wood, a cheap VESA mount I had, and the brackets for the shelf to make it “float”.
I’ve gotten myself one of those ultrawide curved monitors. I’ve wanted one for a long time, and I finally bought one; a Samsung 34". Since my desk is pretty shallow, and not that big really, I also wanted to free up some work surface by getting things on shelves. So I’ve been doing a bit of work on my computer setup.