I use two extensions in gnome I cannot live without. Currently travelling, so I don't know their names by heart. One is for vertical workspaces, the other to visualize CPU/memory/network/disk.
I've had to use a Macbook for a month now, and let me tell you. The world of "I need some functionality = install third party stuff" is infinitely worse.
Want to launch custom terminal with global hotkey? => third party app
Want to manage window layout with keyboard shortcuts? => third party app
Want to add support for normal keys on an external keyboard? (like, home key not being dead) ? => third party app
Want better screenshot support? => third party app
Want to be able to navigate workspaces without waiting 2 second with 120Hz refresh rate monitors (because developers implemented it wrong)? => third party app
Want an alt+tab functionality that isn't a mix between bugged and useless? => third party app
The situation of gnome would be a godsent. It's so bad that I don't care about system monitoring or vertical workspaces. But, once I do, those too would be third party apps.