see for example https://bsky.app/profile/eliothiggins.bsky.social/post/3munb...
It was Russia that prepared for the invasion when they stopped supplying the gas spot market in summer 2021 and later rented gas storage but let it empty. In preparation to blackmail Germany. That didn't work out when Xi did not allow the invasion to start before his winter Olympics ended, though.
As for the Maidan revolution. Yanukovych ran on a pro EU platform with the EU association agreement as a main goal. A few days before signing it he sold out to Putin, declared the agreement dead and called for a custom union with Belarus and Russia. No shit did people go the streets and protested.
How exactly did the US get Yanukovych to renege on his campaign promises and start the protests?