The other important thing to know is that seeds stop creating the same world whenever the Minecraft world generation algorithm is updated, which is usually when a big update launches, such as the Minecraft The Wild update. Now, when you enter that world's seed on Minecraft Java Edition on your PC, you'll still appear in the forest biome and should still have a mountain ahead of you, but it's unlikely that the village will also be there. Let's say you create a new world in Bedrock Edition which spawns you in a forest biome and there's a big mountain in front of you with a village on it.
Here are the limitations of Minecraft seeds: first of all, you'll only get an exact copy of a world if the seed is reused on the same edition of Minecraft as the original, as structures generate differently for each world in Bedrock and Java Edition, although terrain and biomes will be exactly the same. You can also check out some of the best Minecraft servers here