We have different schools of thought internally. Some prefer to tailor the backend API to the needs of the frontend, others prefer to have the backend API super

We have different schools of thought internally. Some prefer to tailor the backend API to the needs of the frontend, others prefer to have the backend API super generic so that changes in the frontend (say, a redesign) didn't require changing the backend. The latter is easier for backenders but harder for frontenders. It's vice versa for the former. So, the complexity stays the same, it influences which team (the frontend or the backend team) gets more complexity. However, when desiging the backend API, we always involve at least 1 frontender so that there were no "surprises".