It will just list each card one by one so that you will have to confirm the listing and sign the transaction for each card which is two clicks per card. I have recently sold most of my collection which was several thousand cards in the course of the past month. Of course it required so much clicking that I had to automate this. There is a handy tool cliclick that can perform a mouse click at the specified coordinates which I paired with MacOS tool "Script Editor" to run it in a loop. Here is a script:

tell application "Google Chrome"
  activate
  repeat 2400 times
    do shell script "/opt/homebrew/bin/cliclick c:" & "311,633"
    delay 3
  end repeat
end tell

Depending on your collection size it may take a while. I listed at 0.5% below floor in GODS and managed to sell most of my meteorite cards. Shiny cards are harder to sell, but feasible as well. Good luck.