if i were to upload my consciousness or whatever i dont think id want to do it all at once, I'd want to slowly digitize my brain more and more, first using implants to make it able to interface with that world, then slowly letting the structure of my brain become more computerized while fundamentally holding onto the same me-stuff,
Until eventually the me-stuff isn't contained in a "brain" at all anymore so I can put it wherever I want and there's no existential terror of a me being left behind when I upload myself, instead leaving merely the everyday horror of slowly becoming something you weren't before that we already live with.
It's kind of like a sudden change on a computer screen versus a gradual one. Our brains can't process the sudden changes as well, and often get disoriented and struggle to connect one with the other or identify them as the same thing. But when sometihng is gradually changing, you don't have any such difficulties, and your brain is naturally drawn to the localities of the change, instead of the change being an instant, all-encompassing, overwhelming thing.
