No I thinks is basically right although could be better worded maybe
/sys is virtual file structure for kernel system info
/proc is virtual file structure of kernel process info
My understanding is /proc came first but was abused/free for all and started being used for all sorts of non standard/process kernel access. So /sys was created with stricter rules to make it more standardised.
OpenSuSE - YaST is as good as is made out to be. I like how many fundamental parts of linux are managed via one tool. Other distros I’d used before were heterogenous mix of tools that felt cobbled together and inconsistent, while YaST feels well designed, integrated and consistent.