Many community-hosted servers have "!ws" (Weapon Skin) plugins built-in.

Knives and gloves are the most expensive items in CS2. IChanger allows you to equip any knife style (M9 Bayonet, Butterfly Knife, Talon Knife, etc.) and pair it with any glove type (Sport Gloves, Driver Gloves) instantly. 2. Pattern and Wear Control

While the allure of free skins is strong, using software like iChanger comes with significant caveats.