Found this article that put the Poco through some tests https://www.getdroidtips.com/xiaomi-pocophone-f1-waterproof/
You can watch these videos that i found, the first youtuber actually tried that on the Poco F1, he put the device on a bowl full of water for a minute approximately and it survived, however, the device has no actual water/dust protection on any port/slot as seen on the second video, so, everything is confuse.Found this article that put the Poco through some tests https://www.getdroidtips.com/xiaomi-pocophone-f1-waterproof/