64 GB is just not enough space if you plan to use the camera a lot. I have a 2nd gen Pixel with 64 GB of space and I find myself running out of space often if I end up recording 4K video or enable RAW shots. Mind you, Pixel has unlimited full resolution storage with Google Photos so cloud storage is not an issue; but you need to be in good wifi to utilize that. While traveling, that might not be the case always.
I honestly think all these high end phones focused on camera, should at least start with 128 GB of space. OS and apps are big enough anyway.
I like how Samsung has stuck to its guns on some of the features that Apple and later others dropped, biggest being the external card support, dual sim support and audio jack. Only if they were not hell bent on adding their own customizations, I would have loved to try one.