How to create a topographic profile with QGis 3.26 (Part 3)

Here's a 5-chapter tutorial on the new QGis feature in version 3.26: elevation profiles.
Chapter 1: Profiles from vector layers
Chapter 2: Profiles from raster layers
Chapter 3: Profiles from point clouds (Lidar)
Chapter 4: Profiles layout
Chapter 5: Profiles in QField