The more recent chairs do away with the rickety platforms, but others don’t look very stable either; like the Alite and others that do not appear to have much separation from the ground. Though only a few inches of air space underneath are needed to keep warm.
So the canoe chair type, linked above, has been perfect. It opens with one simple foldout, keeps the butt several inches off the ground, and is solid as a rock. The only drawback, if it is one, is that it must be strapped to the back of the pack. But plenty of space is left to open the accessory pocket at the top of the pack without unstrapping the chair; and the front leg of the chair, when protruding backwards, makes a nice platform to hold the rolled up sleepmat, the folded tent poles; while the two layers of mesh covering the back and seat are a great place to dry out wet sox. or just stuff light items like a very light windshirt or a cap.
Despite having an ample butt from backpacking, the width of the seat is plenty, and the chair does not have any rickety and unstable tubes that have to be assembled to hold the chair in place. Since it only takes around a few inches off the ground to keep warm; am damned if I know why why they make the rickety platforms. I’m perfectly happy with my legs stretching out when cooking and eating, and the integrated mesh back panel support is much more comfortable than having a length of cloth strung under the back and torso.
Cabela’s et al often use steel or cheap aluminum for their chairs, so I had to buy some alloy X-C touring poles and use the Ridgid tube bender to bring down the weight. In the process, most of the bends were rounded, which makes for a more comfortable chair. But a few of the folding chairs on Cabela’s look promising for some altering. There are some photos on the posted link above.