Sorry this might be a bit late.
Genuinely; I’d persevere and learn to use the BBF.
Not just because personally I find it much more intuitive (when I first used an AF SLR I was frustrated by shutter button focussing), but because it’s a million times more versatile.
If using the shutter button and you have it set to eye af, what if you then want to shoot an inanimate object? You have to remember which button you’ve customised to change focus mode, then cycle through the modes and set it. Or worse still, dive into the menus.
Using the two rear buttons I can go from eye focus to objects within a nanosecond. Without thinking, without removing the camera from my eye. And then back to eye focus at will.
I can use BBF to focus recompose too, or just for timing, using the back button, I focus on some rocks, let go of the button then wait for the perfect moment when the waves crash over them, without fear the camera will try to refocus.
Back to the first point, when shooting MF, the act of focussing the lens was a completely different action to that of clicking the shutter. So combining the 2 actions made absolutely no sense to me, and as soon as I could afford an SLR that allowed me to separate the 2, I bought one.
Then getting the R6 and being able to separate shooting people and ‘things’ has been the biggest leap in camera tech in my 40+ years of photography. Maybe apart from the move to digital.