It would be great to be able to have different remote config configurations (e.g. feature flags) for different preview channels.
This is important to be even able to use/test/QA the preview channel build if we don't want to rollout the feature globally yet (mostly in the last stages of development).

Note: For native apps we solved this by using specific version numbers (that are used only for preview builds), but for web apps the version condition is greyed out.