I'm looking to purchase my first serious camera mainly for shooting high quality videos. As an aspiring filmmaker, video performance is my top priority but I also want to take great still photos. After some research, Nikon cameras seem to fit my needs but I'm open to suggestions.

I have a budget of around $2,000 for the camera body and lenses. Key things I'm looking for are:

• Sharp, detailed 4K video at 60 fps
• Good low light/high ISO performance
• Flip out fully articulating LCD screen
• Decent autofocus in video mode
• Clean HDMI out to external recorder
• Headphone jack for audio monitoring
• Full frame or DX sensor

From the Nikon lineup, I've looked at the Z6II and Z7II but wanted to check if there are better options I should consider. Or would you recommend switching to Canon or Sony ecosystems for my video requirements? Appreciate any advice!