I am thinking about those that sit on an existing desk. it needs to be strong as I have two 34" ultrawide monitors (stacked on top of each other) that, with the arm mount, probably weigh’s upwards of 50 - 60lbs.
I sit too much and find myself beginning to suffer from a lot of pain in my lower back and around my waist…spasms when sitting down, getting up or even trying to move when lying down in bed.