[GAMEPLAY] Fiora's W does not parry Poppy's Q.
Fiora's Riposte (W) is suppose to parry basic attacks, empowered or not. Additional effects such as the Crest of Cinders (red buff) and Icy Spellblade (Iceborn Gauntlet's passive) still proc, including the damage that comes with it. The basic attack does not.
Poppy's Q is suppose to be a "basic attack modified to deal magic damage and deals bonus damage equal to a base amount plus 8% of the target's maximum health." (from the Wiki).
This means it is a basic attack that deals magic damage, which should be parried by Fiora's Riposte, which does not. I have reproduced this many times in-game and it does not show the "Parried!" effect whenever she Qs me.