What is the opinion of Reddit about the
Lap Desk- Fits up to 13.5 Inch Laptop Desk, Foldable Bed Tray Breakfast Table with 4 Angles Tilting Top, Height Adjustable Laptop Stand?

Laptop desks are the best and only way for me, both in couch or bed. This one for example:

https://www.amazon.com/Laptop-Foldable-Breakfast-Tilting-Adjustable/dp/B08HYY9TPW/ref=sr_1_21?_encoding=UTF8&c=ts&dchild=1&keywords=Lap+Desks&qid=1617889294&s=office-products&sr=1-21&ts_id=490924011

Buy a laptop desk and read on the couch or bed. I have something with a similar structure, but not this, closest I could find in a sec.

https://www.amazon.com/Laptop-Foldable-Breakfast-Tilting-Adjustable/dp/B08HYY9TPW/ref=sr_1_21?_encoding=UTF8&c=ts&dchild=1&keywords=Lap+Desks&qid=1617889294&s=office-products&sr=1-21&ts_id=490924011