The Last Good Canon DSLR?

When the 5D Mk IV came out, I remember rolling my eyes so hard. By that time, I had moved onto Sony, Fuji, and Olympus. They were all flying around Canon at Mach 3 while Canon flew on a single DSLR shaped engine. In 2026, the camera turns 10 years old. What most folks dont know is how the camera naturally evolved into the Mirrorless world. Im not talking about the R5 series cameras: Im talking about something else.