You can charge it via either port—plug a cable into the iPad’s direct port on the bottom, or plug a cable into the C port on the keyboard, and the iPad will charge via the Smart Connector that attaches the keyboard to the iPad.
This warning simply tells us not to create a loop between those two ports with a single cable. My post is just a silly joke about using this method to create infinite power.
Huh, can you elaborate? I settled on Vivaldi for now but I don’t love that it’s Chromium