Yep! As we can see, Paragon NTFS for Mac is hard to uninstall, not support older macOS versions…There are absolutely many choices of NTFS drivers for Mac you can choose.
(1) iBoysoft NTFS for Mac. It's cheaper and safer than Paragon NTFS for Mac, which is highly integrated with Mac Finder and Disk Utility. You can mount and write NTFS for Mac easily.
(2) iBoysoft DiskGeeker. It can not only mount NTFS drives on Mac in read-write mode but also support disk clone, clean junk files, encrypt your drive…Much more cost-effective than Paragon NTFS for Mac~
Hope you can find a suitable alternative.
Also read: Paragon NTFS for Mac Review