Time Machine is not a backup, it is unreliable. I’ve had corrupted time machine backups and its backups are non-portable: You can only read the backups using an Apple machine. Apple Silicon is also not leaps beyond everything else, a 7000-series AMD chip will trade blows on performance per watt given the same power target. (source: I measured it, 60 watt power limit on a 7950X will closely match a M1 ultra given the same 60 watts of power)
Sure their laptops are tuned better out of the box and have great battery life, but that’s not because of the Apple Silicon. Apple had good battery life before, even when their laptops had the same Intel chip as any other laptop. Why? Because of software.
Like before, their new M-chips are nothing special. Apple Silicon chips are great, but so are other modern chips. Apple Silicon is not “leaps beyond everything else”.