So I just created a new 1.17 Minecraft survival world on Java Edition and I made a nether portal in a taiga biome the dream way. It spawned me in a crimson forest. I collected some quartz and mushrooms and then exited the Nether through the same portal and it spawned me in an Extreme Hills Biome 200 block away from where I created the nether portal
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We're tracking this issue in MC-149705, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as working as intended, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
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