Warning: deBridge.com has MASSIVE hidden fees

As recommended somewhere I've swapped through deBridge; 5 figures worth and I'm furious, UX was showing not even 0.1% slippage, I actually had 3%??!! it's not from gas or typo, from a spread buried in the exchange rate that is nowhere near clearly displayed before you confirm the transaction.

On small amounts you'd never catch it. On anything serious it becomes a significant loss. Checked the same route on other platforms after and the difference was embarrassing.