The Bedrock seed picker should not change the name of the world.

On the Bedrock version, next to where you input a world seed, you can select a set of presets for your world.

I really love this feature, but there is a slight caveat.

The world name is the very first thing you see on the New World menu. Thus, it's natural to name your world first, then use the Seed Picker. When you choose one of the preset seeds, it changes the name of the world to the seed you selected. This is a minor thing, but it really shouldn't do this. The player shouldn't have to rename their world just because they wanted a preset seed. I wanted my world to be called "Egirl Village" not "Forest Glade".