So anyone having information on the Toxic Rain AoE changes?

Is there any knowledgeable person that can knows the in and outs for Toxic Rain in 3.14 now?

I read somewhere that the AoE changes have actually buffed the Gem.
And what links to go for?

Video I found about before / after comparison: https://youtu.be/W8bCBO-BqO8

For more in-depth advice, check Remi's guide / discussion in it.