If you already own 3850s and have 10–40 APs, use them. But . Instead, look at Cisco 9800-L (virtual or appliance) or move to Catalyst 9300 with embedded WLC for future-proofing.
A decent entry-to-mid-scale solution for organizations wanting a single-box switching + wireless control plane. Avoid for large campus or high-availability needs. cisco 3850 wlc
Source: Gartner Peer Insights
The Cisco 3850 switch with WLC has been performing flawlessly since deployment. We've seen excellent wireless coverage and performance across the customer's site, with minimal downtime or issues. If you already own 3850s and have 10–40 APs, use them
Wired and wireless traffic are handled identically. use them. But . Instead