Wait, aren't all DSLRs global shutter by definition? So this maybe the first mirrorless camera with a global shutter, but definitely not the first full frame camera.
Nope - DSLR shutters physically 'roll'. A global shutter requires global (instantaneous across the image sensor) blanking, otherwise motion artifacts from the sequential readout are possible.
So... can it actually capture 80,000 FPS video at a high resolution? Or is that just the effective shutter speed of a digital shutter.. so very effective at capturing high speed movement with stills?
That's the max 'shutter speed', i.e., can capture ONE frame at 1/80000th of a second. From the video I watched the camera tops out at 120FPS - at full 24MP, and in lossless raw, so full possible quality.
I replaced my old nikon with a sony and I can safely say it was the worst decision of my life. I hate it. I wish I could go back without incurring huge losses.
Should've remembered the old Onion video about Sony - they're usually anathema to things like ergonomic human interfaces and making things work intuitively.
They have gotten much, much better in the camera sector though, through decades of being berated by press and users alike.
When I was really into photography (~2008-2012) Nikon was absolutely killing it, with the best high speed and low light performance on the market, and terrific professional lenses.
Nikon and Canon were the mainstays, Sony was a bit of a sore upstart (their camera business grew from Sony' acquisition of Minolta, the first Sony DSLRs and their DSLTs (fixed, translucent mirror) all used Minolta's digital mount.
Sony went into mirrorless big first, and aside from being mirrorless with a short, adaptable mount, they were pretty terrible as camera systems. But Sony basically owns every fab that produces image sensors that isn't Canon or Samsung, they have access to smartphone technology (and succeed swimmingly in providing smartphone camera modules), and have other fabs and businesses besides, so as they quickly iterated, they quickly improved, coming from way in the back to what's arguably a leading position today.
Note that neither Nikon nor Canon have gotten
worse; they've just all improved at different cadences and according their own priorities and budgets. Right now I'd say all three have managed to differentiate themselves while still competing heavily across their lineups, and between stills and video (for which Nikon was a running joke for a
long time, but no more).
Also note that your Nikon lenses can be adapted well to Nikon mirrorless cameras, as well as to Sony and Canon cameras with varying degrees of interoperability (the Nikon adapters are first-party and official, of course). If you're so inclined.