Afaik GNO rewards are paid from Gnosis DAO treasury, apy decreases with number of validators, a calculation can be found here: Launch parameters for Gnosis Beacon Chain (GBC)
The governance forum for GnosisDAO and the Gnosis ecosystem — propose and debate Gnosis Improvement Proposals (GIPs), follow treasury and delegate updates, and help shape what comes next.
Afaik GNO rewards are paid from Gnosis DAO treasury, apy decreases with number of validators, a calculation can be found here: Launch parameters for Gnosis Beacon Chain (GBC)