I've had my ZZ plant (Zamioculcas zamiifolia) for about eight months now and it's honestly the easiest thing in my collection of nine

I've had my ZZ plant (Zamioculcas zamiifolia) for about eight months now and it's honestly the easiest thing in my collection of nine. I water it maybe once every three weeks and it just... thrives in the corner of my living room with indirect light. The glossy leaflets stay so clean without me doing much. I'm curious though—mine hasn't put out any new fronds in a couple months. Is that normal, or should I be feeding it more often? I feel like I'm still figuring out the rhythm with this one.