If you want to convert Minecraft Bedrock world to Java and enjoy the host of mods, shaders, and texture packs, you're in luck.

A World pack like Aquatic Life, though, will require making a completely new World for that add-on to work. Players on Java Edition will use mods that they can dig around for, mostly at no cost.

Although Minecraft's Java and Bedrock Editions are quite different, it's still possible to convert an existing Java world to Bedrock if you don't mind there being some differences to the world ...