Yes, others have had this same experience, and it has to do with MacOS security features.? I won¡¯t even try to explain it all because it is still a bit of a mystery to me but here is a link to the posting
where I asked the same question and Dave¡¯s responses.? After following these instructions, including the work-around for starting FLDIGI, everything is working great on my M1 with Apple silicon:
/g/linuxham/message/52754