Optimism and Arbitrum are pretty much on the same level. The OP buyback only stayed strong for 3 months and seems to have stopped. @Optimism's buyback proposal for optimism:native was approved in January this year and officially started in February. It planned to use 50% of the Superchain revenue for monthly OTC buybacks of optimism:native over a 12-month period. Based on the official buyback wallet address and on-chain data, Optimism completed buybacks for a total of 3 months (February to April), accumulating approximately 9.45 million optimism:native tokens. Since May 1, not a single optimism:native token has been bought back. It’s still unclear if this is related to @base’s earlier announcement about leaving the OP Superchain.