I can't easily visualize anything ever. When I'm programming, if I truly try hard, I can sort of "feel" my system architecture and bits flowing through it. It sort of resembles a simple computer architecture with multiple threads each with their own stack, building up stacks with function calls. Sort of like what you see when you get a traceback, but dynamic.
You possibly have aphantasia (https://aphantasia.com/study/vviq/). I certainly do, and visualize nothing while programming. I often have to sketch block diagrams on paper to give me a foundation.
