GNU/Linux MX Installing MediaTek MT7921E/MT7921U Driver Guide
Hi! The Tutorial Shows You Step-by-step How to Install RaLink/MediaTek Filogic 320 MT7921E/MT7921U Wireless Driver in MX GNU/Linux Desktop.
And to make use of the Latest MediaTek MT76 Driver on MX Linux it’s enough to dispose of an Updated Linux Kernel.
After a Kernel Upgrade, it is Strongly Recommended to Immediately Proceed with a Firmware Update to Ensure Hardware Compatibility and Optimal Performance. Follow this Guide: How to Update Linux Firmware on GNU/Linux Distros.
But it may be just missing the Proprietary Firmware!
Important: This Driver Requires an Updated 6.2+ Kernel. For the Best Performance and Compatibility, Upgrading to the Latest Available Kernel Is Highly Recommended.

How to Update MediaTek MT7921E/MT7921U Driver for MX