"batch and update" in VF04

Hi experts,

In VF04, there's a tab called "batch & update".

No matter I check the boxes ("list display", "issue collective processing log") or not, the report seems no difference. Am I right?

For "synchonous via VB log" & "synchonous w/o VB log", what's difference between them?

Pls advise. Thx.