If I had learned VIM first, I'm not sure how the switch to Dvorak would have gone. My fear of breaking an unfamiliar editor may have accidentally steered me into success.
The nice thing, though, is most of the other key choices are mnemonic. "C" for change, etc. Such that you really can keep moving fairly well by sticking with the conversation you are having with VIM.
It's a marginal benefit, but it's still a benefit.
The more significant factor than "qwerty vs colemak" is that the thumbs aren't able to achieve much with the hands rested on home row. They can hit spacebar; and to be useful for anything else, the hands have to move.
Whereas, with keyboards like the Moonlander, the thumbs can reach 2-3 keys each.
Albeit, regarding vim's 'hjkl', vim makes it very easy to quickly move around a single line, so h/l shouldn't be very common. For rapid vertical movement, 'easy motion'-style stuff is neat.
I just don't see it being that beneficial. Is like thinking you could be a better pianist if only the keyboard was arranged in a different way. Almost certainly true at a very technical level. Hard to think that is the actual limiting factor for most people, though. Even on the piano, I found that I am better with certain fingers than others, but that it just doesn't make too much sense to worry about that at the beginning.
I think that's much nicer than having to move the hand or stretch with the pinky in order to hit backspace.
Whereas with the standard keyboard layout, you can't keep your hands rested on home row & reach those keys.
Maybe "whether it's worth having such a keyboard" is down to personal preference or whatever, sure.
11 year dvorak user.
I learned Dvorak around age 12, a year or so after I learned to touch-type QWERTY. I completely lost the ability to touch-type QWERTY after switching to Dvorak until I took a CS class in high school that was on ancient computers running Win98, where I had no ability to change the layout.
I have gradually built back my ability to touch-type on QWERTY now, acceptably quickly (probably 50WPM?) but my error rate is atrocious. I find it a little embarrassing to be a computing professional and not be able to type competently when I sit down at someone else's computer.
Did you put in serious deliberate practice time and still find that? If yes, what sort of time?
I suspect those people just did that sort of practice (even if maybe not really attending much to the fact they were doing so - I don't think that's a contradiction!)
I went through that, and got there eventually. It was probably harder to become bikeyboardal than it was to switch in the first place. But now I type in qwerty at work and dvorak at home. I originally switched to dvorak because I was getting pain in the sides of my hands for some reason, but that went away with dvorak and didn't come back. So I figure it's best for me to keep both layouts in my muscle memory.
It felt so weird learning to type in Dvorak layout, but I got used to it and after a month, I was typing ok, and within 2 months, I was probably typing the fastest I've ever been. It felt much easier to type physically and felt more effortless to type. The downside was that every time I went to type on someone else's computer, I just couldn't type on qwerty anymore. Some people just seem to have knack on being able to switch between layouts, but I just couldn't. Being an "expert" on computer as a software engineer, imagine people's surprise when I could barely locate a key... "So where is that B key again?" Also I couldn't use VIM no matter how I tried to remap the keys in vim. Eventually, I abandoned Dvorak for practical reason, and when I did, it took few weeks to get back to re-learning qwerty.