I don't own any knife so I can only speak for the default knife but holy shit, but the knife is so frustrating to use. There is a slight delay between the animation of the knife and the active time of hurt box, plus it has like no range at all, you pretty much only hit if you're colliding with them. In Csgo, the knife is somewhat viable if you're both run out of bullet, but in Valorant, unless you're opponent is stuck in a corner, you better reload your pistol.