Devcontainers and settings.json

Up until now I've always used a workspace settings file. Recently I've started using devcontainers. Despite reading all the documentation on both the workspace settings and devcontainer settings I can't seem to find a good reason why I should be storing the vscode settings in the devcontainer, rather than in `.vscode/settings.json`. It seems to be annoying that any time I change settings the devcontainer can suddenly become problematic or feels like it needs to reload itself...

Can anyone shed any light on why it would be preferrable to put the settings in the devcontainer rather than the workspace settings?