Does that mean you're on Kubuntu? Which would mean you haven't even tried Plasma 6 yet right?

Honestly Plasma is moving so fast it feels like the experience would unironically be better on something like Arch or Fedora where you get new updates almost instantaneously. Anyway, I'm on Fedora and Plasma is pretty stable for me, especially since Plasma 6. Some minor annoyances I encountered are also getting fixed in 6.1.