Much prefer a pdf or online manual.
Store them all in my cloud storage apps, saves all the clutter in a cupboard of differing manuals.
Also keep a tab in my onenote, with all the online help pages.
Been doing that for many many years, even decades.
Tend to ditch the manual with the cardboard packaging in the recycle bin once I have hunted out the online manual.
For most tech, the manual in the box is normally out of date anyway with product firmware updates.