1.6 Electro DMG Buff Comparison | Genshin Impact
Damage Test using Keqing lvl 90, 65EM (around 50% increase on electro reaction dmg).
Pretty significant increase, not to mention the buff to EM. Might be interesting to see later on if EM build can outdps normal Crit Build on Electro Characters. Personally I think still can't catch up to current melt/vaporize meta.