I thought it was going to suck to complete these challenges in 007 First Light, but it's nice that you permanently complete them even if you don't finish out the chapter.
minecraft seed hunters have found a seed that has EVERY SINGLE biome AND structure within 1000 blocks of 0,0 (screenshots using voxy to increase render distance)
found by u/ShoowMe7777777
seed: 8500081009970950196