Node Pie is a Blender addon that converts the usual blender add node menu into a pie menu:
Node.Pie.demo_optimised.mp4
As well as that, the size of the buttons will change depending on how frequently you use each node; nodes you use a lot will have larger buttons, and nodes you don't use much will have smaller buttons:
It also works in all Blender Node editors, and even in custom node editors created by python addons:
For automatic updates, install the addon from the Blender extensions platform, either from within Blender or from the website (Only for Blender 4.2 and above): https://extensions.blender.org/add-ons/nodepie/
You can install also download the latest release here: https://github.com/strike-digital/node_pie/releases/latest