User experience wasn't great.

Font quality with lossy codecs generally looked too lousy back when I tried it at various settings. Screensharing unlike videos is very text centric.

I'd be willing to do the right kind of lossy but jpeg discrete cosines back then wasn't it.

I use many screen sharing apps and none of them have this issue. They do the lossy compression by reducing the number of colors (gradients become bands) not by JPEG-style discrete cosines.

I agree. I missed the thrust of your disagreement and overstated the importance of lossless vs screensharing-oriented codecs.