yes

vulkan/draw/VertexFetchCount.frag

@@ -0,0 +1,14 @@
+#version 430
+
+layout(location = 0) in vec4 in_color;
+layout(location = 0) out vec4 out_color;
+layout (set=0, binding=0, std430) buffer StorageBlock
+{
+  uint counter;
+} ssbo;
+
+void main()
+{
+  out_color = in_color;
+  atomicAdd(ssbo.counter, 1);
+}