first one looks like "Aegopodium podagraria" to me. ( we call it Giersch here).
it can be indeed invasive. Its rhizomes break easily and each piece grows a new plant...
good thing, its edible ( taste between carrot and parsley somehow, and rich in vitamins and minerals.
the youngest leaves that are still curled are the most tender and tasty ones.
as well, slugs tend to like it ( they know what's good), so it can keep them at bay.
take care

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