Congrats on 7 years! That's ancient for a potted peace lily (Spathiphyllum). The 8-inch bare stem leaning sideways is from soil settling and stem elongation over time.
Peace lilies form clumps. Unpot, divide into multiple crowns with roots, pot each in fresh mix. You get several vigorous plants.
At 7 years, division refreshes the plant. Staking buys time. Email photos for tailored advice.
Peace Lily Black Spots: Causes and Solutions for Healthy Plants
Cold-Damaged Peace Lily: Demand Replacement, Then Careful Recovery
Managing an Overgrown Peace Lily: Pruning and Repotting Tips
Reviving a Giant Peace Lily After Repotting Mistakes
Peace Lily Blooms Turning Black: Check for Pests
Peace Lily Transplanted from Water to Soil: Root Rot Emergency
Peace Lily in Australia: Indoor Care for Coffs Harbour Climate
First Peace Lily: Watering, Fertilizing, and Smoke Myth
Peace Lily Wilting Despite Water: Rootball Integration or Root Death
Peace Lilies Outdoors in Summer: Not Recommended
Peace Lily Toxicity to Cats: Irritation, Not Usually Fatal
Reviving a Damaged Peace Lily: Pruning, Watering, and Fertilizing Strategy
Peace Lily Inherited: Water by Feel, Not Schedule & Repot if Rootbound
Reviving a Heat-Stressed Peace Lily: Watering, Pruning, and Recovery
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