Looking for S9 stock firmware

Hi !
I would like to go back to the stock firmware.
In the uninstallation documentation of iodé, it’s written that stock firmware can be found on sammobile website. But there is no way to download it. I registered, but never succeeded to get a download link. Where could I find the stock firmware for my galaxy s9 ? Thanks !

Did you try samfw.com?
Samsung Galaxy S9 Firmware Download SM-G960F Free Download
Select your country and load it through that side.

Didn’t know this URL, thanks for sharing.