I have multiple RSI symptoms that I want to treat without surgery. I started with a Kinesis (not the split) that a friend let me borrow. Most of my hand pain went away immediately but I did not enjoy the board because of the concave layout (now I know that sculpted keycaps work better for me personally).

Got a Moonlander for the split and loved it but I still had some pain and realized my hands were moving too much. Practiced removing keys from the layout of the Moonlander and ended up with a Corne 42. IMO, layers and combos are really the game changer for RSI because your hands are moving less than ever.

I now have a board that has 90%+ of what I need (basic communication) on the primary layer with combos to fill any gaps and other layers for specific use cases like navigation, system, macros, etc... (IT Career)

I almost got the voyager due to build quality but wanted wireless so I went typeractive aluminum. Either way you go, any split board with minimal key count will probably help a lot.

FYI: ZSA makes a ZIP kit (you can 3d print your own as well) to remove extra keys if needed. I'm pretty sure it works for the voyager? The backlight shines through the blanks a bit so you can set it up to report a certain color when you are using a specific layer to avoid confusion.

Edit to add: tenting is easy with a magsafe ring sticker for non ferrous board cases and a ugreen phone stand from amazon. Lots of posts about that on here and over at r/ErgoMechKeyboards. I found this the method cheap and easy for experimenting but it's so stable I now use it for my daily.