Lightroom is applying filters to my RAW images

In the library section, you see an image preview -if you have imported the files using the embedded preview - so this is a JPG  image from the raw file (raw files have a built-in JPG image and this is what you see on the back of your camera) When you go to the develop module - depending on how you have set it - the file is set to zero as it were, and from this base, you develop it how you wish. This would probably account for the colour difference between the two modules. (Have a look at the settings on your JPG files in the camera settings like white balance, picture profiles - landscape, portrait etc.) I would set the parameters for JPG files in the camera to zero to maintain consistency. 

Maybe this is why you see a colour difference.

And a final request for niw.

Please post your System Information as Lightroom Classic reports it. To accomplish this, in Lightroom click on Help, then System Info, then Copy. Paste that in a reply. And if you could include that info from first line down to just past plug-in info (info after plug-in info just gobblygook)

Inquiry, in the Library mode, if you look ar]t a 1:1 preview, does this change?

Inquiry, does this occur for all photos?

Normally the fact that Lightroom Classic uses different color space in Library vs Develop mode would be brought up. but, yep, way way to different. So not that.

Fairly sure an issue in monitor color profiles will be brought up.

But before a better informed member answers to that, could you do a couple of additions to your posting.

1. Recreate the develop mode screenshot, with the History panel shown.

2. Please answer, what previews were created at import?

3. Where any presets selected at import

4. In Library mode are we looking at Smart Oreviews

5. In Library mode are we looking at embedded previews

6. What device do you use to calibrate your monitor?