I don't know about the latest update on Paxful, but it was popular in the past, but they stopped working and things changed completely over the past months. This is the first time I've heard about Shiftal but there are better, open source alternatives.
It's been a while since I heard about Paxful; I thought they were extinct. Anyway, I'm not familiar with the other platform either, probably because I haven't been searching – Bitget P2P gives me what I need seamlessly. Their merchants' release time is exceptional.