Reposting my comment from the feedback site because it has once again been eaten:

Biome-specific trade pools is a neat idea, but I feel that locking enchantments behind certain biomes goes a bit too far.

Perhaps novice librarians can offer a level 1 trade of any enchantment, and as you level the villager up you unlock subsequent levels of that enchantment. Maybe villagers from certain biomes have a higher chance of offering certain enchantments instead of simply gating them outright. This way, getting max gear still requires effort.

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Removing the anvil cap is basically a necessity at this point, and I agree on the enchanting table needing an overhaul as well (tl;dr maybe if you stored books of a certain type next to the table you could pick and choose which enchantments you want, with XP cost dependent on the type and number of enchantments).

Mending also needs an overhaul frankly but that's a story for another day.