Updating Wine

I'm a total dummy on Linux. I've got Wine 3.0 installed using the AppCenter, but how in the world do I update to the latest version of 4.0.3?

 

Uninstall it first.

Then take a look at this: https://tecadmin.net/install-wine-on-ubuntu/

If you want to run steam games that are for windows, enable proton in the steam on linux instead.