Burst: 1. initial hit and crystal collapse have separate ICD. Crystal Collapse follows normal ICD (2.5s) - Nass008#8577
Particles
Elemental Skill: Gorou produces 2 geo particles on Elemental Skill cast. (I hope 7 tests is enough, ping pong me if it isn't and/or you get something other than 2 particles. - Neptunya#8291
Gorou's zone has a delay before applying the buff (like Bennett's Q), the character receives the buff when the paw appears above their head - Frost--Flame#2563
Burst Mechanics
Gorou's Crystal Collapse damage from his Elemental Burst doesn't snapshot. Neptunya#8291
Gorou E and Q initial hit don't get the benefit of its own buff - Nass008#8577
Q initial hit (and A4 on initial hit) benefits from A1, but not Q buff, while Q collapse (and A4 on collapse) can benefit from A1 and Q buff. - MeCrush14#2271 (Stats)
Gorou's Q buff lingers for 2 extra seconds. - Vess#7650
Ascension Mechanics
A1: Heedless of the Wind and Weather
Gorou's Heedless of the Wind and Weather (A1) only scales off of base defense stat. A1 will not scale off of additional defense values gained from artifacts and/or skills. Trosalio#0420
Constellation Mechanics
C1: Rushing Hound: Swift as the Wind
Gorou's C1 CD eventually desyncs from his E CD, meaning you cannot proc it on every E cast. Steno#0119
Gorou's C1 can snapshot/Gorou's E and Q zone buff is delayed like Bennett's Q buff. To trigger C1 the character must deal geo damage while in the field, for characters with off-field abilities it just means they need to enter the zone and use the ability before going off-field. In the second half of the video Albedo/Zhongli's E were used before they received the buff, meaning they weren't considered to be in gorou's E at the time of casting. - Frost--Flame#2563