Since Chronium 148, Math.tanh is now fingerprintable to link underlying OS

Starting in Chrome 148, the Math.tanh() function has become a reliable fingerprinting technique to identify the user's operating system because V8 switched from using its own bundled math library to calling the host OS's native math library (glibc on Linux, libsystem_m on macOS, UCRT on Windows), which produce slightly different floating-point results for the same inputs. This creates an OS-specific "signature" that contradicts spoofed User-Agent headers, making it nearly impossible for browser automation tools to convincingly mimic genuine browsers without matching these subtle mathematical differences across hundreds of signals.