How can I find out UserAgent string for a specific browser?

I want to change the UserAgent property for a weboption object. For example I want to have internet explorer instead of Matlab. However, if I use weboption I see that the UserAgent string is "MATLAB 9.8.0.1451342 (R2020a) Update 5".

>> weboptions

ans = 

  weboptions with properties:

      CharacterEncoding: 'auto'
              UserAgent: 'MATLAB 9.8.0.1451342 (R2020a) Update 5'
                Timeout: 5
               Username: ''
               Password: ''
                KeyName: ''
               KeyValue: ''
            ContentType: 'auto'
          ContentReader: []
              MediaType: 'auto'
          RequestMethod: 'auto'
            ArrayFormat: 'csv'
           HeaderFields: []
    CertificateFilename: 'default'
    

The string is not so simple and I don't know what string I have to use for other user agents. Where can I find them?

[Harry]

Open the following link. This page shows you what your web browser is sending in the "User-Agent" header for your HTTP requests.

What is my user agent? - WhatIsMyBrowser.com