DevCon23 - Introduction to Bluetooth Low Energy Development in Embedded Systems

The talk will provide a beginner's guide to Bluetooth Low Energy (BLE), how to get started with developing BLE applications on embedded systems, the different challenges, and the recommended path for becoming a proficient BLE developer.
The talk will touch on the different platforms used for BLE development, the different applications of BLE in the field of the Internet of Things (IoT), the recommended method for learning BLE development for embedded systems, and the future of BLE in the field of IoT.

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I'm using ESP32-C3-WROOM-02-N4 module with STM32 controller. Can I use Bluetooth Classic Commands instead of BLE? Is there any supportive firmware I can get for the same purpose? Like backward compatibility?