The Fujitsu ScanSnap S1500M Scanner was designed for macOS, and was only meant to be compatible with Apple's operating system. Support dropped a long time ago so only older macOS versions are supported. What official driver support that is still available is downloadable below.
The Windows version of this device the (S1500) can be found at the link below too.
ScanSnap Manager for Mac Setup Program
File: ScanSnap_V22L11.dmg
63d22a3ea7b01a32b0064bacad74dd82359ed366f5039d0fb6519e78cfee5beb