Hi,
after having tested several distros with various environments I finally found SparkyLinux. I am happy with the rolling minimal GUI version with openbox that allows for a lean system set up. It's highly customisable to my needss and running on older machines (aged 10) smoothly. It goes very nicely along with my workflow that includes more use of the keyboard and less use of the mouse. Few other systems are configurable like this.
Best, CM
Welcome to the forum!