Will the Xi'an tech that introduces this new strafing maneuverability be applied to any other ships?
TL;DRXi'an strafing technology could theoretically appear elsewhere but will likely stay Xi'an-exclusive, since it depends on the whole spaceframe and can't sensibly be retrofitted onto ships not designed for it.
Theoretically it's possible, but it will likely remain exclusive to Xi'an ship designs. While Xi'an thruster technology plays a large part in delivering this unique strafing flight capability, the overall design of the ship's entire spaceframe and power infrastructure is also integral to providing the full range of articulation and point reinforcement needed to utilize it to its fullest. It is not something that can be effectively or efficiently retrofitted to ships not designed with them in mind from the ground up. Furthermore, the resulting structural arrangement, with main thrusters located outside the ship's main fuselage and borne articulation joints that may be exposed from multiple angles, is less durable under fire than contemporary 'bricky' human designs. Xi'an engineers still make their fighters as strong and durable as they can without compromising the ship's other capabilities, but this requires accounting for these requirements from the get-go. An attempt to retrofit a Xi'an thruster rig to a ship that wasn't designed with one in mind from the start would result in something downright rickety.