If/Does your LO fuss before settling down for a nap/sleep? If so, how long does it take, and did you sleep-train?

I don't sleep-train, but I have been working on nap-habits and routine for months now. We've had our ups & downs with teething and milestones interfering. But for the most part now, I can tell when I can put her down for a nap with minimal fussing. She can be an escalator when upset/crying, so I don't do CIO. But I can let her "fuss" about in the crib and recently she's pretty consistent with falling asleep after 15-20 min. (But I still nurse before naps). If she is not asleep within 20 min, usually the fussing turns into full-force crying and I'll never get her down for that nap. I'm hoping eventually, the fussing time will be shorter and nursing won't be necessary. LO is 9.5 mo.

Interested in others' experience with something similar?