Light armored (Robes aren't the only light clothes): For maximum 🏃♂️speed at casting, moving and attacking (of course, the less you are wearing the faster you are) and also for good stealth. Bonus to ranged attacks?
Medium/leather armored: Bit more protection, better stealth, but slower than light armor, balance between ranged and melee attacks? ⚔️⚖️🏹Good for hunting (chasing) and tracking (if you hunt you know you will have to fight if you found your prey) good in open zones🧗🏻♂️
Medium/Mail armored: More protection, less speed, less stealth, bonus to melee damage? ⚒️(There is more mass behind your melee attacks) Good to protect and Fighting in small zones with some traps🐾
Heavy Plate armored: Lot more protected Rangers at with more melee bonus at the cost of speed and energy/resource spent on every attack. Experts at defending zones with traps and some nature spells (defensive damage) 🛡️🌲💪🏻