I was on the same boat as you. I installed noctalia after having tried and not really getting a perfect arch / niri / waybar setup.

I think I'm completely done after like 6 hours which is insanely fast, and it really is everything I ever wanted. It is cohesive, easy to style, has good defaults, includes essential programs like polkit agent and notification daemon / osd, has a ton of plugins.

I should have tried it so much sooner.