Mirroring and controlling a device remotely using another device e.g Phone to Laptop is much more complicated, especially when using software like VNC Viewer which is used primarily in organizations, by web developers because it requires some extra setup. But over the years, there have been applications that make mirroring and controlling devices remotely easier e.g TeamViewer which can be used multi purposely.
One of the common methods of setting up remote connections easily is explained below using chrome.

How to create a Remote connection on Android using Chrome Remote Desktop Connection:

1. Download Chrome Remote Desktop on the device you want to mirror to and to the one you want to mirror from.

2. After downloading, ensure your Google account is logged in on both devices.

3. Go to the device you want to make the host (the one you want to mirror from) and download Remote Desktop Host. Click on create connection.