This article will be about the timing of activating Proliferating G. The basic rule of using G that proliferates is to chain it to an effect that causes a Special Summon from your opponent, but with monsters like Cyber Dragon, the basic rule doesn’t apply because they don’t chain block.
If your opponent’s deck contains cards that Special Summon without chain blocking (long story, so we’ll call them Cyber Dragons from now on), it’s advantageous to know that you may be able to draw more cards if you hit Proliferating G first.
Cyber Dragon Type Special Summoned Monsters (Master Duel Support)
白の聖女エクレシア/Incredible Ecclesia, the Virtuous

雷仙神/The Ascended of Thunder

ヴァレット・キャリバーRokket Caliber

アブソルーター・ドラゴン/Absorouter Dragon

海晶乙女シーホースMarincess Sea Horse

LL-ターコイズ・ワーブラーLyrilusc – Turquoise Warbler

SRベイゴマックスSpeedroid Terrortop

Live☆Twin キスキル・フロスト/Live☆Twin Ki-sikil Frost

Live☆Twin リィラ・トリート/Live☆Twin Lil-la Treat

幻影騎士団サイレントブーツ/The Phantom Knights of Silent Boots

サイバー・ドラゴン/Cyber Dragon

ダイナレスラー・パンクラトプス/Dinowrestler Pankratops

溶岩魔神ラヴァ・ゴーレム/Lava Golem

怪粉壊獣ガダーラ/Gadarla, the Mystery Dust Kaiju

Decks that see the use of Cyber Dragon type Special Summon monsters.
S-rank
相剣

幻影騎士団

A-rank
天威ローズ

LL

エルドリッチ

壊獣カグヤ
B-rank
ヴァレット

海晶乙女

スピードロイド

イビルツイン

サイバードラゴン

Basically, I ranked them based on their usage rate in Ranked Matches, but I gave Eldritch and Kaguya an importance of A because the number of cards used in Eldritch and Lava Golem varies from deck to deck.
summary
When playing against Sagakken and Phantom Knights, you need to think more carefully than usual about when to activate the proliferating G. Especially, you can’t be too careful with Soken because there are so many of them as of mid-May.