This nothing new. The MD F4 had such an arrangement. Upon retraction, the main gear strut would be sucked up (shorter) as it retracted into the well.

It usually worked okay, but I did watch an F4-C land gear up at Keflavik because one of the gear extend in the well and got hung up.

Spectacular show from my perspective next to the runway.

Major Charlie M. held it off too long and plopped in on so hard, the radome flew off, the radar package extended on the rail, and the drop tanks curled back over the wing.

He jumped out and left his WSO, Lt. Andy A. Stunned and sitting in his seat, canopy closed.

Of course Charlie got the quarterly AF safety award.

https://m.youtube.com/watch?v=-MuFie_YOdE