For most users, the standard Linux Kernel that ships with your distribution suites your purpose fine and should be considered not to change for system stability. The following tutorial will demonstrate how to install the latest Linux kernel from the sid repository using the command line terminal for users wanting to test an upcoming kernel from the Debian team to see if it addresses hardware or performance issues.

Source: LXer – How to Install Linux Kernel 6.0 on Debian 11 Bullseye