This datapack allows you to make progress and even beat the game in worlds with Generate Structures disabled!
Progressive No Structures is a lightweight datapack that allows some items to spawn in Simple Dungeon chests (which still spawn with Generate Structures disabled) as well as allowing some structure specific mobs to spawn in other biomes. With this datapack, the game should now be completely beatable, and most blocks and items should be collectible.
Blaze:
+Rib Armor Trim Smithing Template (7.5%)
Breeze:
+Flow Armor Trim Smithing Template (7.5%)
Copper Golem:
+Bolt Armor Trim Smithing Template (7.5%)
Drowned:
+Coast Armor Trim Smithing Template (7.5%)
Guardian:
+Tide Armor Trim Smithing Template (7.5%),
+Wet Sponge (12.5%)
Endermen:
+Eye Armor Trim Smithing Template (7.5%)
Husk:
+Dune Armor Trim Smithing Template (7.5%)
Phantom:
+Broken Elytra (1.5%)
Ravager:
+Sentry Armor Trim Smithing Template (7.5%)
Shulker:
+Spire Armor Trim Smithing Template (7.5%)
Vex:
+Vex Armor Trim Smithing Template (7.5%)
Warden:
+Heavy Core (100%),
+Music Disc Fragment - 5 (100%),
+Ward Armor Trim Smithing Template (7.5%),
+Silence Armor Trim Smithing Template (2.5%)
Witch:
+Nether Wart (0-3),
+Wild Armor Trim Smithing Template (7.5%)
Wither Skeleton:
+Rib Armor Trim Smithing Template (7.5%)
Outter End Islands:
+Shulker,
+Phantom
Basalt Deltas:
+Blaze
Soul Sand Valley:
+Breeze,
+Wither Skeleton
Deep Oceans:
+Guardian