You can

You can submit as many runs as you can. Just make sure that they are PBs.

You can retry but retrying causes time loss

Why there isn't any filters in streams part? I found a lot of fellow countryman from country filter for example. And I'm sure that I'm not the only one who wants old or even advanced streams filters.

GGs on first sub10, congrats! 🎉

I used animation skip by pressing F11 at the end of the game. It is allowed and you can check how to do it from guides.

Pyramid's rule could be matching all the cards in a board maybe