Ah, I see what you mean. Yeah, no way around that without a GPU or a processor with integrated graphics.
You should be able to get a used workstation GPU for $20-40 on eBay. Something from Dell, or a basic nvidia quadro would do the trick. If you could sell the 1660 super for more than that, could be worth the effort.
Alternatively, the 1660 Super would do the trick nicely if you ever needed to transcode video streams, like from running Jellyfin or Plex.
Ducktor