I think you gotta nail her introduction in a way that bridges the old Fox universes, acknowledges Sony’s alt universes, and feeeeeels like a sequel to the DOFP story suggested years past.
Which is why I’d include Anna Paquin as Rogue and a spiderverse glitch animation.
The problem is you have to build toward a finale that fixes her own glitch and establishes MCU as her new home universe.