If we assume on-chain fees remain cheap and accessible, then all Fedimint really does is allow users to give up full self-sovereignty in exchange for easy onboarding. A decent trade-off for some, but not super game-changing. But if we assume on-chain fees are going to exponentially rise, Fedimint has a very strong use-case as a scaling solution. It's built to solve a problem that largely doesn't exist... yet.