Apple devices do not have provision to set proxies for all connections simultaneously. Users will have to manually set the proxies for each connection they use. For example, if you set proxies to your office network, come back home and get connected to your home network, you will have to set the proxies again.
This can be an advantage and a disadvantage for users. Sometimes people might want proxies only for a particular connection, they’ll be happy to get off the proxy grid for other connections automatically. Many others might want to be completely anonymous on networks they connect to and they’ll find it a little cumbersome to set proxies manually for each connection. However, if you value your personal information security, you will not worry about the little extra work that this process entails.
To set up a proxy connection, Apple device users will first need to connect to the network. They will then need to open the connection settings and scroll down to proxy settings. You have to select manual mode and then enter the proxy and port information. You will also need to enter the username and password of the network connection. This is for authentication purposes. Your connection will not be set on proxies. You will need to repeat the entire process for each connection manually. People use proxies on Apple devices to stay anonymous while they are browsing and also to monitor/regulate connectivity on the Apple devices that get connected through a particular network.