I get the idea but I’m sure it won’t work.
The Raspberry pi dual USB A is 15mm from top to bottom. It can’t really be any thinner as the two plugs to be inserted need room above and below the actual ports and the case is only 2 x 0.5mm.
The whole USB A dual requires a case, of some plastic, so another 2mm minimum. So now 17mm
Room below the bottom plug of another 2mm, so 19mm overall. The top plug casing can rise up to the level of the ‘input cover’ so none there.
The max current height from desk to top of expansion card is about 9mm so it would have to be doubled in height.
And I don’t think it would be a practicle idea to use them as feet and have weight on them. Plus there would always need to be two expansion cards of the same height.
All seems rather pointless as USBAs are going out of fashion so why make a new rather unwanted expansion card with all the extra cost too.
Currently there id official talk of trying to get two USBC ports side by side anf that could be usefull.
Do you currently have a framework laptop ???