Things have improved significantly in the EVF since the days of the A7II and the 6500......Maybe it's just me but using an EVF on a Sony 6500 and A7ii is the worst. The pixels are so big and the brightness changes way too much as you move your eye. I take lots of photos of movement like marching bands and parades etc. so I'm always moving around.
Personally I've relugated those two cameras for video only and use my 80D for photos.