They may have the PC/CD install like I do and I do not have a shaders file in the programs folder following the directory that you provided. I even did a search files for shaders and nothing came up. Do you know where or how to find this on a CD installed version of the game?
Viewing post in FS25 Monteith, IA 1X RCR comments
If it's not C:\Program Files (x86)\Farming Simulator 2025Then you've installed it somewhere else, then I have no clue, I've not used FS CD installs since 08' , you can search the forums but that's the best help I can give, unless you can find someone who has the file and can send it to you.....
Since there is an update pending then best wait.