FBConan has been active since 2018. No major security firm has flagged his ISOs for known malware (unlike "Ghost Spectre" or "Tiny10" which sometimes trigger false positives). He does not force a custom web browser or inject ads.
: It features custom themes that change the UI, cursors, and icons, such as the recycle bin, to provide a more personalized aesthetic. Fully Updatable
The primary goal of this build is to provide a "revived" experience of Windows 10 that strips away modern bloat while maintaining compatibility with essential software. FBConan, a well-known developer in the custom Windows community, focuses on extreme performance and a minimal footprint. Key Features and Optimizations Extreme Lightweighting
Keep in mind that FBConan's creations might not be officially supported by Microsoft, and users assume some level of risk when installing custom software.