I own the Voyager and it's a great piece of kit, my only wish is that it was wireless, but the team has clear reasons why they've stuck with wired boards (https://www.zsa.io/wireless). A trackpad would be lovely. Very portable and comes with a great key editor to handle layers.
Also worth checking out the one-man Bastard Keyboards (diy and prebuilt), he does the Charybdis kits with trackballs, or the Dilemma Max split mech with a trackpad alongside ortholinear keys: https://bastardkb.com/product/dilemma-max-prebuilt-preorder/
I followed the "wireless" link, but thought they'd have much better arguments. Couldn't you make a replaceable battery, and an optionally-wired keyboard? Yes, wires are great (I went with wired for mine after my BT one proved too flaky), but wireless controllers are so cheap nowadays that you might as well add a wireless option to your keyboard.
Their anti-wireless argument is pretty weak imo. My logitech K780 takes two AAA batteries that I literally replace max once a year. And it uses bluetooth!
Technology breaks everywhere. Wireless is just one more thing to go wrong. Especially for a device that never moves on my desk. Which does not even address the multiple security issues which have been discovered in keyboard protocols.
what strikes me as odd with the Voyager though is that the marketing is geared toward using this as a portable alternative to larger split keyboards like the Moonlander.
one marketing photo stuck with me and actually put me off buying it: it had a laptop setup at a generic coffee shop with a cable looped around it going to one half and another connecting the two halves. it looked ridiculous and reminded me of just how annoying that connector cable could be at times.
Also worth checking out the one-man Bastard Keyboards (diy and prebuilt), he does the Charybdis kits with trackballs, or the Dilemma Max split mech with a trackpad alongside ortholinear keys: https://bastardkb.com/product/dilemma-max-prebuilt-preorder/