Is it me, or is it considerably lighter/softer than the R5? I don't have mine anymore to compare side by side, but after getting out to shoot a bunch today I felt like the shutter button is too light, and needs more definition for a full press vs. half.
Like you, I didn't have them side by side, but I haven't observed a difference. I do use the R8 and R5II side by side and don't notice a difference between those shutter buttons. That doesn't mean there isn't a difference, though