PoE and PoE+ are power classes
Basic PoE and PoE+ describe how much power can be delivered under supported standards. The endpoint and switch must agree on what is needed.
Cameras vary widely
Simple fixed cameras may be modest loads, while PTZ, heater, spotlight, or multi-sensor cameras can need more power.
Access points can push the budget
Modern Wi-Fi access points may need PoE+ or higher, and some also benefit from 2.5GbE uplinks. Check both power and data speed.
Do not ignore cable and run length
Poor cable, long runs, outdoor routing, or bad terminations can make a theoretically compatible PoE setup unreliable.