Same thing. I did not setup intending to login on a terminal, it happened by accident, then I looked at my resource consumption and I was knew this was my new mode. Nice, clean, in the background, and it just works. If you are resource limited, look into Earlyoom. Makes a world of difference in this economy. Looking forward to v5 as well.

To expand on the other reply a bit, niri and sway do just the window management. So if you want things like notifications, media keys, panels, docks, bluetooth/wifi widgets, screenlocking, wallpapers, etc, you need to provide those separately.

Traditionally, those would be separate utilities, but Noctalia provides most of what you'd need in one package. Pretty convenient.