It's a matter of preferences. Actually I like trackpads that don't mind and have physical buttons. The separation between the surface that moves the pointer on screen and the surfaces that generate the clicks means that there are no misclicks and no involuntary pointer movements while clicking.

Haptic schmaptic, I just want my Framework's enormous trackpad to respect deadzones and stop detecting my palms. I had to entirely disable tap-to-click, because nothing else would work.

I might have to try their preinstalled Ubuntu images or something and see if there's some secret sauce in the input configs.

There is no accounting for taste. For instance, I still prefer discrete buttons over tap-clicks or multi-finger-taps, but I would accept the mild annoyance of tap clicks over the pressing down the pad itself.

Is the software that makes them so pleasant to use available on Linux?

Not a huge fan of the "force touch" trackpads on newer macs, the old man yells at the clouds. In all seriousness though I have used a pre force touch MacBook not too long ago and I prefer that experience a lot over the new one I have from work. Though the larger size of these trackpads is something I really like and where neither the older MacBook nor the the current non-pro Framework 13 come close.

More like the reverse: if you want the new battery you need a new bottom.

The new battery is physically larger, so the old bottom cannot accommodate it.