[hakfoo]

I've seen a few modern keyboard designs with a couple of columns on the left. The problem is that most of them are enthusiast projects that cost several hundred dollars and are sold as a group-buy for 15 minutes and then you wait two years for delivery to solder it yourself.

I used an Omnikey for a while recently-- nice solid board, and agreed that the layout is nifty, but I've had nothing but trouble with the reliability of modern Alps-like switches. Right now, there's a GH-122 on my desk (one of those enthusiast projects from like 2016)

A few gaming-design boards, have extra columns for macro keys which could be remapped to function key layout.