Definitely not ergonomic as others have stated. In good practice when working at a desk (or even gaming), the top of the monitor should be at your eye level. Only your eyes should look downward, not your head. The monitor in general should be about one arm’s length distance from your body - this varies depending on monitor size, resolution, et cetera.
From my personal anecdotal experience, while one would think that having the monitor’s center at eye level is great, it was uncomfortable during a long gaming session. I would crane my neck up to look at certain things on the UI at the top of the screen when I should have just glanced with my eyes. After I switched to the ergonomic method of having top of the monitor at eye level, it has dramatically improved my comfort and ergonomics.
While there will always be variances that depend on the person, most hospitals and health providers recommend the top of the monitor to be at or below eye level.
“Place the computer monitor straight in front of you, directly behind your keyboard, about an arm's length away from your face. The monitor should be no closer to you than 20 inches (about 50 centimeters) and no further away than 40 inches (about 100 centimeters). The top of the screen should be at or slightly below eye level. If you wear bifocals, lower the monitor an additional 1 to 2 inches (about 2 to 5 centimeters) for more comfortable viewing.”
Source: Mayo Clinic : Office Ergonomics - https://www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/office-ergonomics/art-20046169
I used to as well. Sitting like a normal person is super uncomfortable for me; cross leg or bust.
Then I invested in an old hospital bedside table kinda like the one below (the kind on wheels that you can raise and lower with a crank, paid like $10 for it at a thrift shop) and a comfortable chair (if I could afford a recliner I’d use that, instead I just use a regular big fluffy comefy chair).
I’m still flexible enough to sit like that, but I’m too old for it to not be a terrible idea. The wheeled table allows for a lot more options for sitting abnormally, legs over the arms of the chair, even laying on the couch.