All of the people I have worked for request a number of things;
Manufacturing outputs for a single board
Manufacturing outputs for a customer specified panel size
PDF schematic
Excel spread sheet of detailed BOM
PDF of BOM
PDF of each layer.
A picture/ accurate 3D rendering of an assembled board.
Original design files.
Then, depending on the customer they ask for other things, like an assembled board, use of a specific cad program ect.
The important things they want straight up though are manufacturing outputs for their manufacturers, PDFs for easy printability and opening without the cad software, they want a pic of an assembled board so they can see the final product and they can show their assembler, they want the original design files, so if they need to revise it, they can pass the files on.
Depending on who you work for, they may specify the cad program, but if they do, then it doesn't matter what you use, because you have to use that or you'll not get the job.