flag for setting useragentdata

[Sarthak42]

Is there any flag available, like the one for changing the useragent from the command line, to change the user agent data that contains brands, platform etc information.

In other words, i want to change the user agent and the meta data(example given below) by using chrome launcher.

Example:
"userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36",
"platform": "Win32",
"userAgentMetadata":
{
"brands":
[
{
"brand": "Chromium",
"version": "121"
},
{
"brand": "Google Chrome",
"version": "121"
},
{
"brand": ";Not A Brand",
"version": "96"
}
],
"fullVersion": "121.0.0.0",
"platform": "Windows",
"platformVersion": "15.0.0",
"architecture": "x86",
"model": "",
"mobile": false
}