CSS Panel obsolete

I keep looking for answers to this. I use it frequently, because I write hand-coded HTML banners and use Illustrator for outputting SVGs and raster images in various sizes, and use the CSS Properties panel to copy CSS for their respective positions and sizes on the artboards. It's EXTREMELY useful for people doing this kind of thing and I will personally keep an older version of Illustrator around if they actually kill it and don't offer a replacement feature. Even if it gives sloppy CSS output, which you can't change.

On that note, I still use the Save for Web (Legacy) in Ps and Ai because their Export for Screens feature does NOT do stuff I need it to, that the old one does, and it even has gotten buggier over time for no reason while it's been deprecated as well. It's infuriating.

This is usually a sign that something gets phased out.

Have you ever used it?