The Poll isn't appearing for me too, but the things that I would really like to learn in minecraft are two things that I haven't particularly explored that much yet, first would be PVP, I constantly wonder how people get so good at pvp but to be fair I haven't actually played much pvp before other than bedwars. And the second one is noteblocks. Other than those two, I would love to further improve on building and in redstone.
What about you?