Making custom electronics goes way beyond "passionate" and into "has specialized skills and enough capital to get these made".

I think "well just make the PR yourself" comments are too reductionist myself, but in this case Framework does have space for 3rd party components in the marketplace. I don't think it'd be crazy to imagine some custom keyboards will appear there.

And here's an example of someone making a custom keyboard: https://blog.perprogramming.com/posts/framework-ortholinear-... - it looks pretty awesome, and I'm fairly sure this is the first time I've ever seen a laptop with an ergo keyboard like that.

Framework 16 is a collection of modules, so I think complaining about the modules is fair game, but it could also be seen as a basis/standard that isn't expected to fit everyone's needs, but fit maybe 90% and allow other people to make the customizations they need easier, in which case complaining about they arrow keys on a single component does feel a bit trivial.

How exactly does typing Fn+ArrowDown instead of PgDn lead to injuries?

Why would you miss the keyboard forest that's explicitly linked to in the comment for the tiny blade of grass that is PgDn?