That seem.....not good. I have this, way better IMO.
https://www.amazon.com/Topfit-Working-Remotely-Upgrade-Comfortable/dp/B0993HPTT3
https://i.imgur.com/gUwOUn0.jpg I have all 3. The top one is by far the best. I use it to eat too
https://www.amazon.com/gp/product/B0993HPTT3/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
I use this for computer and eating. it’s basically a platform with its base resting on the armrest and the door side armrest