At DecentralGames, we're routing dozens of new users to Decentraland per day, primarily from Blast. At the moment, they are given an error -- leading to drop off -- and told to go to ETH Mainnet. This would be a good UX improvement and great for optics... primarily the hundreds of thousands of blast users w/ > $3B TVL. I also saw the ticket from NikkiFuego asking to allow Polygon sign-in and wanted to make sure her use cases were covered as well. We were able to easily allow all 3 options (Mainnet, Polygon, Blast) on decentral.games and would be happy to assist!