We’ve had the fault dispute game running on op-sepolia since March 19 and all dispute games have resolved correctly. op-sepolia was updated to use fault proofs prior to the Sherlock audit contest so we have updated it to deploy the fixes as a result of that contest.
You can see the interactions with the system starting from the DisputeGameFactory contract on Etherscan. For a simpler view, you can use the subcommands on op-challenger to list games and list claims.
See this answer from @maurelian: https://gov.optimism.io/t/upgrade-proposal-guardian-security-council-threshold-and-l2-proxyadmin-ownership-changes-for-stage-1-decentralization/8157/19