Google Chrome by default uses your operating system's default setting to connect to the network and the Internet which is normally via direct connection.
You can change proxy settings in Chrome though that will effectively change the proxy settings for the whole operating system. This is because going to the proxy option in Chrome will open the computer's proxy setting.
You can also have a more advanced proxy configuration by using browser extensions such as FoxyProxy
Go to chrome://settings from the URL bar.
Proxy management browser plugins such as FoxyProxy will be listed in the section if installed
The caveat to this approach is that it will configure the system's proxy setting whereby all the other traffic for your systems will through the configured proxy. To route only your browser's traffic through a proxy, it is advisable to use proxy extensions such as FoxyProxy
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