What do you mean by cohesion? I feel like cohesion with Linux would mean cohesion on Desktop Environment (which we have with GNOME and KDE being so popular) and packaging format (which we have with Flatpack)
Mind you even though I've been running Linux for decades, I have lost the enthusiasm for the low level details and am happiest when I can use apt for everything and have the OS manage dependencies and updates. I see a lot of negative comments about Flatpack and my experiences haven't been great, so I don't know if it is comprehensively good and will solve issues like low level drivers (GPUs).