Yes, I miss Art files greatly. They had a great app and would love to know what happened. In the meantime, I've been using "flightCheck"
https://markzware.com/products/flightcheck/
It's not a full subsitute for Art Files but it sure beats the alternative to open each individual ai file and package. (I'm running OS Ventura 13.1 with the latest Adobe software) FightCheck will allow you to drag multiple files into a window but unlike Art Files which creates one folder for all files, FlightCheck creates a folder for each ai file including its fonts, linked and embbeded files. You can establish a "go to" folder for FlightCheck to create the files. When you're done, you can compress all the files together to send to your press house. Yes, duplicate fonts and images will appear due to the individual folders FlightCheck creates, but I'll let my vendors deal with that issue. What I don't like is that FlightCheck will create "embedded" files for special affects like blur, drop shadows etc. Those can be unchecked for collection but it's an extra step I like to avoid especially when I do have embedded files that I would like to inlcude in the collection in case critical last minute changes are needed. Another issue I've had is that if "Connect Fonts" client is used for font management, FlighCheck can be little buggy. It will think a font may be missing but is not. It's an uncommon occurance but it does happen. Previously my employer used Univeral Type Client and there were no issues with FlightCheck that I had. Hope this helps, and hope the developers of Art Files return.