NextGenTips published a tutorial about upgrading the Linux Kernel on Debian 11 to 5.16.

How to upgrade Linux Kernel on Debian 11 to 5.16 Release

In this tutorial, we are going to learn how to upgrade Linux Kernel to 5.16 mainline release on Debian 11. Linux Kernel is a free and open-source, monolithic, modular, multitasking Unix-like operating system. It is the main component of a Linux operating system and is the core interface between the computer’s hardware and its processes. 

How to upgrade Linux Kernel on Debian 11 to 5.16 Release - NextGenTips