I'm not referring to cash flow. My understanding is that amortization does get counted as part of the player spending / squad cost that we get measured against. Otherwise we could just spend whatever transfer fees we wanted without worrying about the regulations.
Yes, that’s why Chelsea were offering players 8-year contracts to spread their value across as many years as possible to circumvent FFP. They tightened that gap recently though and I think 5 years is the maximum amortization of initial transfer fee, regardless of contract length.