Questions about game mechanics and UI display

Hello, I'm a new player and have many questions about the current game mechanics.
1. The Ranger, Mercenary, and Huntress are three completely different classes. Why do so many people in the community recommend playing with a bow? In the game, the bow is the Ranger's starting weapon, and their skills and talent trees are built around the bow. If all three classes use the same weapon, their class characteristics will be completely indistinguishable.
2. Regarding the energy orb display: After learning a skill as the Huntress, it prompts me to consume Frenzy Charges, but I have no idea where to find and how to obtain them.
3. Regarding the display of hits, critical hits, dodges, and blocks, I have no idea which of my attacks crit or miss, and I can't see whether my attacks were dodged or blocked. This makes it difficult to tell when these stats take effect. The UI only displays these stats when I'm affected by effects like fire, ice, lightning, poison, or bleeding.