IDE should show progress/splash screen during extension migration and initialization"

On first launch after migrating from 1.x to 2.x, the IDE is silent for 5-15 minutes while loading extensions and initializing language servers. Users need feedback to know it’s not hung. Also, there are two confusing bottons: “Next” and “Continue with Google”; it is at all clear which one to press. Nothing happens when clicking “Next”, which led me to think something was amiss, and finally clicking “Continue with Google” led me to a browser connection window. But again - it is NOT clear at all what to do next. Please add more explicit instructions!