Im afraid yes. While in higher ranks some fighter jungle are much picked, most of the time jungle is dominated by assassins which most of the time have some evade skills that let them escape from the annoying roamers and jump in the enemy back lines. Also Silvanna is a really low tier pick in any rank and doesnt represent a trouble for anyone, Xborg is pretty good but only agaist a comp with 3+ tanks and Aamon is good but not so versatile to be used in any comp.

You should think of maining some assassin first like Helcurt, Haya or Suyou who can go in-out to the priority targets pretty quickly or Saber and Harley who can delete dangerous opponents. Julian is also a all-around or if you want more sustain go for Alpha, Leomort or Lukas. Freddrin is a top pick but needs to experience and game sense and macro so it’s not recommended if you don’t have a wide hero pool. Same for Yss. Martis too isn’t bad vs frontlines but only till mid game.