- the harder you push, the faster the mouse goes.

- 360 (or whatever the effective number of directions you can push with a finger) is also much richer than 4

You can't replicate it with binary down/up buttons, so QMK-like support isn't a good replacement.

(at least for the first one you could have a newer generation of keyboards that have "analogue" buttons the track more than 2 positions)