No, but the pterosaurs might have been, because their (likely) quadrupedal launc...

No, but the pterosaurs might have been, because their (likely) quadrupedal launch implies they could optimize away all unnecessary muscle (read: weight) from the legs, so they inherently could optimize their body plan better.

And they also had two wings.

[0] https://en.wikipedia.org/wiki/Pterosaur

[1] https://www.youtube.com/watch?v=scAp-fncp64&t=150s

[2] https://www.youtube.com/watch?v=9TKgupAZVzE