It seems the validation message that is used in the tutorial was removed since then (see https://github.com/KhronosGroup/Vulkan-ValidationLayers/pull/992)
mentioning that would reduce some confusion when validation layers are enabled but the message does not appear.
https://vulkan-tutorial.com/Drawing_a_triangle/Drawing/Rendering_and_presentation#page_Frames-in-flight
It seems the validation message that is used in the tutorial was removed since then (see https://github.com/KhronosGroup/Vulkan-ValidationLayers/pull/992) mentioning that would reduce some confusion when validation layers are enabled but the message does not appear.