This is an example of a manga that would benefit from it : https://mangadex.org/title/23811/boku-no-kokoro-no-yabai-yatsu
Between each chapter, there is at best one extra chapter. Its usually 2 or 3....and sometimes its even 5 or 6.
It would be nice if the reader had a checkbox in the settings...
Oh ok so basically this is a chapter that is worth nothing and doesnt advance the story in the slightest. 3 pages about the old man potion drinking (that we already know about).
Next time maybe the tunnel to a room and we will get another cliffhanger for that room. Where there is a sofa.