Ok, I'm getting the parts together to build a new Linux box. One of those parts is my secondary HDD, where my Linux partition lives. I used GRUB as the bootloader in the MBR and everything worked ...

This post provides guidance on the 2-step process to successfully uninstall Linux in Windows 11/10 Dual Boot setup without losing data.

I don't normally have to deal with GRUB in my regular Linux usage apart from the boot menu. Since everything's set up correctly on installation, I can just let it be.