A. To work around the lack of direct ringtone export, you can use iTunes or Finder (on macOS Catalina and later) to manually transfer ringtones. First, save the ringtone file to your computer, then connect your iPhone to the computer, open iTunes/Finder, select your device, and drag the ringtone file into the 'Tones' section. Sync your device to transfer the ringtone.
B. Alternatively, you can use a cloud service like Dropbox or Google Drive to upload the ringtone file from your iPhone and then download it on your computer to transfer it to iTunes/Finder.