Paper wallet addresses are legacy address, starting from 1. Using P2PKH while importing the wallet as seen on the image you included in  your post, but it is worth knowing that if it is not nested segwit and native segwit addresses, if it is just legacy address, the P2PKH prefix is not needed, you can just past only the private key to generate the legacy address for you, I do not know of the future, but it still work that way till now.

It is advisable to give the guide to fir users that downloaded the wallet to also verify its PGP signature. The links to a guide for the verification are on the official site or to use the one we recommend on this forum