If you needs more information about creating symbols, here are some resources
Mike Engelhardt (Qspice author)
Importing 3rd Party Models into QSPICE (Video Tutorial) - Qorvo website
Importing 3rd Party Models into QSPICE (Video Tutorial) - Youtube
KSKelvin (@KSKelvin)
https://github.com/KSKelvin-Github/Qspice
Symbol Guideline : Qspice/Guideline/Qspice - General Reference Guide by KSKelvin.pdf
3rd-party symbols : Qspice/Symbols-KSKelvin/subckt symbol (third-party model)
Prof. MarcosAlonso (@marcos.uniovi)
Qspice #1: Introduction and How to Create New Components (Youtube)