Welcome to the site! Feel free to make a post in the Streaming/Recording/Equipment subforum if you have any further questions about recording your runs.
There is already a leaderboard for that game. If you want a new category, ask for it to be added to the existing board.
What is it specifically? A new game would usually go through the support hub, whereas a new category for an existing game would need to be added by the game’s moderators.
Yes, you can take a break. No, you can’t pause time during the break unless the category rules specifically allow for that.
Ask in the Minecraft forum or discord. Or check the guides.
Welcome to the site. Here is the leaderboard for Farming Simulator 22. You can make a post in the game’s forum or message a mod if you want another category added.
One option would be to run splits on a separate device. I personally use an app on my iPhone for splits while running the game on PC. Downside is you can’t have the splits on the recording, if that’s something you want.