Are motorized curtain tracks loud?

This is the most common complaint across specialist subreddits. Reddit r/homeautomation threads call out noisy first-generation SwitchBot units and some Tuya tracks as deal-breakers for bedrooms. Newer systems advertise quiet modes (SwitchBot's QuietDrift, Osprey's ~33dB rating), but verified-purchase reviewers note that quiet modes are usually slower and use more battery.