I’ve noticed that too! For some reason the Lear Fan is super popular, sometimes I’ll see 2 or 3 parked on the apron. It also loves using the Bucher-Jungmann Biplane. Sometimes I wonder if FS is keeping track of how often I fly each plane, and placing lesser-used ones at the gate, so I’ll see them and say “hey i haven’t flown that one for a while”.
My favorite “annoying but interesting” feature has to do with areas where things don’t render properly. I landed the KA-10 Kamov on Lake Elsinore, and at one point there’s a separation where you can see “under the world” through the seam on the water. Drifting over it was strangely disturbing. Due to my graphic settings, sometimes water reflections make the surrounding area look “solarized”, but instead of complaining, I accept my sim-reality. Really it’s about gratitude.