The coastlines for versions 1.18 and above don't match up perfectly. Always select the version that was used to generate the chunks you're looking at. If you started your world on an older version, you'll have to switch between the versions in the app. If your in-game world doesn't match the map here at all, it's most likely due to one of the following:
If none of the below helps, please report in the comments and include your seed, platform and version, and coordinates.
