When Ubuntu dropped the hammer on Gnome2, I saw Unity desktop and was kinda... ewwww. And next I have installed Gnome 3. After 15 minutes with it I decided that Unity is actually not that bad, so I switched to it.

In the following years Unity kinda grew on me, so I'm sad that it was axed and now everyone use this Gnome3 abomination. It is not as bad as it was five years before, but loss of top menu and general preference for biggins buttons instead of drop-down menus is a bad idea for desktop computers.

I wish someone would fix Gnome3 by making it look back like Unity .

The best thing about Unity is that now it will never change for better or worse and still works with Ubuntu 20.04. It's fairly minimalist and frozen in stasis like I wish Apple had done with the SnowLeopard UI.

The only thing I liked about unity was the HUD that allowed you to search through application menus by typing the setting you were looking for. Do you know if there’s anything offering that functionality for Gnome3?

Not for GNOME 3 but MATE has a Heads-Up Display https://github.com/ubuntu-mate/mate-hud