Snow layers still generate floating above frozen lakes

The bug

21w20a fixed bug MC-610, but snow layers still generate floating

Where I took my attached screenshot

• Game version - 21w20a
• Create a normal Minecraft world using this seed: 7791229366069107276
• Go to x=-1398 y=64 z=3774

Note: you can reproduce this bug by going to any snowy tundra biome on any seed.