-snip-
So if you ever need to export the addresses' keys, you'll have to encode the ECDSA key (HEX) into compressed WIF format for it to be compatible with other wallets.
Don't worry, it uses the compressed public key to generate the nested SegWit addresses so there wont be any issue when spending funds.
Anyways, it's the best option for now since Armory 0.96.5 can't generate "Native SegWit" and Taproot addresses.