Yes, it's all about increasing the mobility of the molecules of odorous compounds. Non-volatile compounds do not smell because they cannot get into our nose. As the temperature rises, the "volatility" of aromatic compounds increases, and at the same time the likelihood that they will fly into our nose, sit on the receptors of the olfactory lining and we will smell. If something smelling is dissolved in water, for example, then in the heat we feel a much more intense smell due to increased evaporation from the surface and the transfer of odorous compounds to the air.
It's all about diffusion - the penetration of molecules of one substance between the molecules of another. It is known from the physics course that the higher the temperature, the more intense this process occurs, which leads to a sharper sensation of odors.