I'm currently having issues sending/receiving MMS/Group messages using any other SMS app besides Google Messages. I'd like to delete it in my quest to completely DeGoogle but need to find a solution first. I'm currently using GoogleFi (will be switching to US Mobile next year) and read someone's comment on Reddit that Fi doesn't add an APN and that he added one and his started working. So, I found the appropriate APN settings for Fi and noticed that within the GrapheneOS APN setting there isn't a field for MCC/MNC settings. Is this why its not working? I read this was a known bug with Android 15 but that's all I could find.
Any suggestions on how to get my MMS working without having to use Google Messages would be greatly appreciated!