This is the golden key. You are not looking for "D-Link drivers" for your Mac; you are looking for that have been compiled for macOS. Once you understand this, your search becomes significantly easier.
If you are using a genuine old Mac (like a 2012 MacBook Pro) with OpenCore Legacy Patcher, the patcher automatically fixes Broadcom Wi-Fi. It does not support the DWA-525. Wireless Dwa 525 Drivers For Mac
Finding drivers for the on a Mac can be tricky because this hardware was primarily designed for Windows-based desktop PCs with a PCI slot. Official Driver Support This is the golden key