As per convention for most Linux beginners and intermediates alike, the action of "Librebooting" a personal machine is nothing short of a commonality. Founded by Leah Rowe, the Libreboot project aims to create libre "boot firmware based on coreboot, replacing proprietary BIOS/UEFI firmware" and, through this simple yet imperative step to true privacy, one can achieve true digital freedom.[1] It is centered around the elimination of the threat of the Intel Management Engine (IME/Intel ME), which has been infamously speculated to be a potent spying device. [CITATION NEEDED - for school, I have written an article on Libreboot, if it is helpful. It is honestly terrible from my own standpoint but may be helpful.]
Specific Device Tips
Dell OptiPlex 9020 SFF - Easier Method
In a talk with Leah Rowe herself, there is little to no need for the popular Pomona Flash Clip [NOTE TO SELF