In this video I walk you through the basics of PySide6 and Qt Designer. We'll design some simple windows and forms and hook them together.
Qt for Python documentation.
https://doc.qt.io/qtforpython/index.html
Excellent book on Qt for Python (PySide6)
https://www.amazon.com/Create-Applications-Python-PySide6-hands-ebook/dp/B0B21V87FS/ref=sr_1_1?keywords=PySide6&qid=1674621707&sr=8-1