Punjabi language descended from Apbhramsa during 10th century. Credit goes to poetry of Hindu Nath Saints

Gurmukhi script which is used to write Punjabi has roots in Sharda script (prevalent during Hindu Shahi rule in Punjab)

Lohri, Maghi,Vaisakhi are all Hindu festivals https://twitter.com/dmvbanda/status/1221464979179741188

Punjabi male dress which is a Punjabi Tamba or tehmet is derived from Vedic Dhoti

Punjabi women dress Suthan is derived from Svasthan worn during Hindu dynasty: Gupta age

So Many Punjabi Tappe (Songs) dedicated to Mata Rani and Thakur

So whether its language or script, music or festivals, Hinduism had a direct role in Punjabi culture.

In fact, Punjab word itself derived from Sanskrit word Panchnada

But if Punjabiyat means Bromancing with grooming gangs, then only Khotas have 100% contri in that

Adding on many folk Dieties of Punjab i.e. Shitala Mata, Sanjhi Mata, Baba Sodhal have roots in Hinduism

The greatest of Punjabi Mela i.e. Jarag Mela is dedicated to Hindu Goddess Shitala Mata. Another popular mela is Sodhal Mela dedicated to Hindu God Sodhal (Naga Devata)

In this thread, one more point can be added. All the weekdays in Punjabi are derived from Hindu culture only. What has सोम, मंगल, बुध, वीर (Shiv Gan), शुक्र, शनि & आदित (ऐत) to do with Islam & Sikhism?