How do you set formFactors?

[ghost]

please help :(

[ttlns]

https://developer.mozilla.org/en-US/docs/Web/API/NavigatorUAData/getHighEntropyValues#formfactor

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Sec-CH-UA-Form-Factors

For the header, you could use request interception. JS can be spoofed as well, but often is detectable.
At this point, I would recommend patching//modifying chromium itsself.