how best to migrate from old macbook to new macbook
I use Time Machine on my current MBP. I'm moving to a new one and want to know whether I should restore EVERYTHING (OS and all files) or just all files to the new one. I've not done this in the Mac world before and don't want to make a mistake I'll regret. And of course, once I'm on the new MBP I'll want to move my Time Machine backup to that machine and clean out the old machine.
The descriptions of the options I've seen don't go into any detail so I'm unsure what corners I might back myself into and am looking for people's experiences and recommendations about what path to take, hopefully including your rationale. Thanks in advance.
MacBook Pro 15", macOS 10.15