To answer your question, Mantle gets a revenue share agreement with Lido DAO:
The usual staking reward setup within Lido is:
Stakers: 90%
Node Operators: 5%
Lido DAO Treasury: 5%
This first-of-its-kind for Lido revenue sharing agreement would return a percentage of revenue earned by Lido DAO Treasury to BitDAO 12 months after the arrangement comes into effect.
The revenue sharing agreement would last 12 months with a possibility to extend subject to a DAO vote.
The exact terms of the revenue share should be in line with the recent proposal on Lido DAO forum (and are also subject to this proposal passing the Lido DAO vote): Tiered Rewards Share Program: A Sustainable Approach to stETH Growth - Business Development - Lido Governance