You can use Blender on L5 already with mouse and keyboard and also use touch input:
The UI is not for touch input yet, of course. I streamed it from my desktop PC. So I can even use Cycles rendering on complex scenes.
The only question remains: why should I use it on such a little screen, when I have a 4k monitor to work with? It makes indeed more sense to use for Tablets.
I don’t know if I ever need Blender in touch friendly, but it’s a great thing, especially for those using painting tools (sculping, coloring, …).
Btw: Blender 4.5 got also native Vulkan support and huge speed improvements on many edges and more cool stuff.