I installed the "Norton 360 Advanced" a few days ago on two notebooks (Windos 11 and Windows 10) and observed in both that "Norton Private Browser" was installed with the hidden extension (can be observed when the developer option is enabled) called "Privacy Guard" (4.1.546 version) does not have the Norton logo nor has the option to be removed or deleted.
Was this extension installed by the "Norton Private Browser"?