The Microsoft ISO is always the most current, reducing the time spent running Windows Update to catch up on patches, whereas the Lenovo recovery image might be outdated. Full Customization:

This process wipes your hard drive completely. It contains all the "bloatware" (McAfee, Candy Crush, etc.) that comes pre-installed.

: Creating a bootable recovery drive will completely wipe your target hard drive. Move your documents, photos, and game saves to an external drive or cloud storage first.

Contains tuned power profiles that maximize battery life for ThinkPad and IdeaPad laptops.

This paper analyzes the debate between using a Lenovo OEM (Original Equipment Manufacturer) Windows 10 ISO (obtained via Lenovo DDRS ) versus a generic Windows 10 ISO from Microsoft

Often tuned with specific power profiles for better efficiency.