Using this seed, you will appear near the border of two very rare biomes: a mushroom island and ice peaks. This is a rather specific area, it can even be called hardcore, because finding trees near the spawn will be problematic. If you are going to explore the world, and not stay in place, then go to the coordinates -240 ~ -270, here you can find a small island with a village.
How to use Mushroom Island and Ice Peaks seed
Start the Singleplayer mode
Select ‘Create New World’
Then click on ‘More World Options…’
In the ‘Seed for the World generation’ field, enter -4886351543203087937