CalHob :
"This is a huge boon for professional photographers"
I cannot disagree strongly enough! PROFESSIONAL photographers have been using professional photo and imaging software for so long now that adding this to Windows 10 is a mute point. This might be a nice addition for novice or casual users of digital images.
I disagree with your disagreement. Having native support for displaying thumbnails and file details for RAW images in File Explorer seems quite useful, even if it's been possible to find workarounds using other software. Even a professional photographer will likely need to use systems that don't have such third-party software installed, in which case, they may otherwise be stuck without thumbnails and other useful information about their files. I can also see the reasoning behind not natively supporting it up until now, since RAW actually encompasses a large number of brand and camera-specific formats, so support is bound to be more complex for a company that doesn't already specialize in digital imaging software.