Got some lewd pictures that we want to hide do we?
Not sure if you can do what you are trying to do with windows by default since I havn't cared enough to do try it myself but... I know that you can either:
a) Change the icon to static so that it doesn't show a preview of the picture/video by going into folder options > view > check the "Always show icons/thumbnails" if you are just trying to hide lewd icons
b) You can install a third party "file explorer" and get ur view that way by downloading and installing something like Explorer++
Edit: There is also a third option but it won't make it default though. It will just apply the settings to the folders that are like that folder. For example, if you are in a folder full of pictures and you view by list, any other folder that has pictures will also be in list format. The way to do that is:
1. Open a folder and make changes as you like.
2. Press Alt to display the menu bar. Click Tools -> Folder options.
3. Click View tab.
4. Press the "Apply to folders" button.
5. Click Apply and click OK.
Edit 2: Whoops, Pokoko already suggested what I edited before I pressed submit but yea, its about the samething although a bit wonky
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850