Minecraft Netherite dechanting?

No
1

You should first entchant dia and then enchant netherite armor or netherite

Sn

First enchant slide equipment until you have everything you want.

e.g. Are 2 slide sharpness 4 swords easier to get and cheaper to make 1 slide sharpness 5 sword out of it than doing that with 2 Netherite swords.