Then you’d also be pressed to show the same for Linux.

The only two reasons Linux updates are represented as terminal commands are that:

• Most distros have several DEs that come with different app managing software, so you naturally don’t have a universal “update Linux” button
• Typing a command is simply faster

But in principle, app stores coming with most major Linux DEs can absolutely update your system at the push of a button.

Some distros, like Fedora, even allow you to update your UEFI straight from the app store. How’s that to you, Windows?