Had it installed on my SHIFT6mq yesterday to check it out. Unfortunately couldn't get the SIM card to work on the 2024.06 PostmarketOS release. The latest edge (unstable) release looked more promising at first, in that it asked me to provide some sort of carrier credentials, which I could presumably get from my carrier, but then everything started crashing very violently. 🫠
Those are certainly dealbreakers, as it's my primary phone, but man, I liked what I saw a lot...