Anybody else in here wish YouTubers would stop comparing the A7RIV to a medium format camera? They're not exactly the same thing and there's more the MF than overall pixel density. The two formats don't even have the same DOF.
Eh, it's just like APS-C vs. full frame (or even m43 vs full frame). They *can* look the same, but the bigger format has potential for less noise/shallower depth of field/wider angles of view assuming you can attach the right glass. I think I saw a video speculating that the A7RIV's sensor is just a cut-down version of the one in the GFX 100 since the pixel pitch is the same (3.76μm).