"The dead don’t praise the LORD" (115:17). Is the psalm saying there is nothing after death?

The psalm says one line about the dead, and no more: "The dead don’t praise the LORD, nor any who go down into silence" (115:17) (tap silence). Other psalms say the same kind of thing, as questions: "In Sheol, who shall give you thanks?" (Psalm 6:5), "Shall the dust praise you?" (Psalm 30:9), and "Do the departed spirits rise up and praise you?" (Psalm 88:10). Psalm 6's honest question sets these side by side with Hezekiah's writing, and these notes don't repeat it. What Psalm 115 adds is its own words for the dead, "any who go down into silence" (115:17), and that it turns at once to the living: "but we will bless the LORD, from this time forward and forever more" (115:18). It doesn't say what the dead know or where they are, and these notes don't add to it or answer it.