Every Gorillo in Stobe Gamble is now an Alpha with 90+ stats and wrecks early-mid chars, I suspect similar in Royal where Gorillos are already a nuisance.
Alpha Leviathan models are so large they cannot be attacked with melee weapons, game AI bugs out not allowing melee char to attack - inconsistent bug, could attack normally for a bit, then only block.
Leviathans of all sizes smaller than Alpha now have a strange teleport yanking that disrupts smoothness of melee combat.
Levi Alpha drop fewer items than non alpha, making fight more for challenge than reward, take that as you will.
Levi Alphas might be making game lag in strange ways, unconfirmed what is causing this but is always when a levi alpha is nearby.
Animal spawns that can be alpha seem to prioritize loading an alpha within a sinlge-spawn pack before elder/adult/pup etc? Might be in certain zones (Stobe Gamble, North Coast).