Any teachers here?

I have a daughter turning 4 soon, and since she can’t do preschool this year, I want to start getting her ready for kindergarten the following year. Hopefully everything will be safe enough then! I’m just wondering what sort of things kindergarten teachers want their kids to know!! She knows how to write her first name. We’re working on last name, it’s really long. Is there such a thing as her learning too much? I don’t want her to be bored during class either. I’m guessing they don’t teach too too much in kindergarten. She’s my first child so I’m just trying to get some info. Thank you.