The Cyberpunk 2077 knife is a type of melee weapon, and it is recommended to use blades if you want to approach a mission or an enemy with stealth. You can purchase the knife at gun stores, vendors, and loot your enemies. We suggest using mods like Kunai, perks like Blood Brawl and Build with the Knife. It is important to adjust the perks according to your playing style.
However, the two most recommended trees are Blades and Ninjutsu. Blade Weapons is one of the weapon types from Cyberpunk 2077, it is related to the Reflexes attribute and the Blades ability. The knife is a melee weapon with a simple blade that allows quick attack combinations, but it has the disadvantage of being able to block less effectively. We recommend using Throwing Knives version for its benefits.
It is important to note that you should not follow the perks blindly and adjust them according to your playing style.