Qatar Airways Flight

Greetings,
My flight from Hong Kong to Doha is scheduled for 7:10 PM. I intended to take the ferry in the morning, allowing me to check in my luggage and arrive at Hong Kong International Airport well in advance. This would also allow me to enjoy some time in Hong Kong before my departure. I would appreciate it if you could inform me whether checking in for a Qatar Airways flight at Shekou is possible. Additionally, I would like to know the recommended time frame for early check-in, thanks