If you are just doing word processing, browsing the web, and playing video games then absolutely. Yes.
There have been gui tools available to install packages, configure networking/wifi, and manipulate files. For a long time now. Especially with the integration of Flatpak and snaps into gui-based package managers (like pop shop) it has become quite simple for any "regular", non-technical user to manage the basics and even the intermediates of any system (depending on the distro).
Where things will likely fall short is with troubleshooting. But to solve that we would need to build something like the windows troubleshooter. But with so applications owned by so many different groups it would be difficult/near impossible to write a troubleshooter to integrate them together.
Though I am also a bit of a hackerman so I probably also don't realize how much I use the terminal for normal things.