I read that the Model F keyboard were supposed to emulate the feel of the Selectric keyboard. Haven't bought one before, but heard a lot about these: https://www.modelfkeyboards.com/store/
My mother also had a Selectric, and I used it sometimes. I mostly remember it being loud.
I don't recall the keyboards being especially different, but I was just a kid. I do know that it utterly spoiled me for dome keyboards, which I always hated; I hauled that Model F around for about fifteen years, before going full-laptop for awhile. I still have it.
At which point the mechanical keyboard renaissance was in full swing, so I use an Ergodox now. Cherry-type switches are good enough, but if someone made an Ergodox type board with Model F type buckling spring keys (fat chance), I'd have my grail.
Between the Selectric and the Model F was another IBM keyswitch design known variously as the "Beam Spring" or "Keyboard B" which was much closer to the Selectric in feel. It even used the same keycaps as the Selectric. The Model F was introduced as easier to manufacture and more compact.
