This is an unparalleled Bengals agreement, even with guarantees after Year 1. They may have to do that next year if they extend Ja'Marr Chase and Tee Higgins.
A few years from now, team and player will likely make an editing pass to generate cap space, as with every mega-deal.
Even now, cap hits are manageable until 2027, and the team can still sign Chase, Higgins, and others.