A:AnswerI don’t believe Apple allows for that. I think they have solder the parts so that individuals can’t upgrade the device. You can check and see but I think started this a few years back.
A:AnswerIt’s actually pretty fast. Now depending on your internet connection you may think the M1 chip isn’t living up to the bill but it actually is. Because beyond the connection when working on other items you’ll see the seamless transition from one item to the next.
A:AnswerSpeaking transparently you’ll need more than 512GB. Ideas and photos along with the apps that use them will fill up part of your storage very quickly. If you had a 1TB you may be able to maneuver around it.
The other option is to get external storage.
A:AnswerThe high performance cores in the M1 run at 3.2 GHz. This is not really comparable to Intel speeds at that rate, as the architecture is different.