Did I mess up on updating my system?

edit

I ran a command in my terminal "thinking" it was correct but I'm not sure. I ran su -c 'dnf update' It's looks like it's updating everything but I have no idea. I then ran dnf --help and saw that there's not even an "update" option. Only "upgrade". Did I mess up? It showed all the packages that were going to be installed, a matter of fact it's installing 1081 packages I guess because I have a fresh installation. I just found it really odd that I used a dnf option that's not even available but it still did something. Usually if you use a command option that is not recognized on Ubuntu it tells you. I'm just scared I did something I'm not supposed to do. :(

https://imgur.com/a/eCBke