I'm using Premiere Pro 2020 (14.9) on macOS 10.15.7, and I just successfully imported some files captured from 18-year-old miniDV tapes, if that’s the DV format you mean. The MediaInfo utility says the video stream is DV format. However, the files have an .mov filename extension because they’re in a QuickTime wrapper. I think they were captured using Premiere Pro a few years ago, from the original miniDV tapes.
If DV import is not working, I’m not sure what to try except maybe transcode.