A final mainnet activation date for the Glamsterdam upgrade has not been confirmed by Ethereum developers.

From the articleETH news: Ethereum’s Glamsterdam test gets last-minute fix before major capacity jumpAlso in Ethereum Glamsterdam hits Sepolia with 200 million gas limit test, Prysm Patch Sets 200M Gas Limit for Ethereum Test, Ethereum Client Prysm Patches Glamsterdam Test Ahead of 200M Gas Limit Increase