Java 1.16 to 1.17 snapshot
Modified Jungle Edge (rarest): >!\-200, -200!<
Fortress: >!150, 100!<
Stronghold: >!\-696, -1080!<
EDIT: [Bedrock World Download](https://www.dropbox.com/s/iwsvovluytbhcrs/64971835648254%20Java%20to%20Bedrock.zip?dl=1) of this seed \*356 MB file size\* (UNTESTED) - 2500 blocks from spawn pregenerated (larger area to include gravelly mountains as pointed out by u/Plebiain). Extract zip and put it in minecraftWorlds folder and blame NVIDIA if it doesn't work.