Hello! I am quite new to all this, but I tried installing wine from terminal using the guide and it didn't work even though it worked on a previous installation, so I downloaded it from ubuntu software instead, it works if I run the command
If you have the wine-package installed, then you can copy the wine.desktop example file from /usr/share/doc/wine/examples/wine.desktop to /usr/share/applications/wine.desktop.
To make the changes visible, log out and log in
Now you can choose "Open with other application" → "View all applications" → "Wine Windows Program Loader"