Hello,
Windows itself manually selects and manages network connections using the following methods:
Disable/enable network adapters; Set network priority by adjusting jump points.
But both of these methods require you to manually switch, which is tedious.
Maybe you can write two scripts on the desktop, one is to enable NIC A and disable NIC B, and the other is to enable NIC B and disable NIC A. This makes it easy to switch networks.
In addition, you can set up a route so that the computer can access both networks at the same time.