Personally, I found the perfect keyboard in Ergodox [0][1]. Ortholinear, split, programmable (and open-source) keyboard with hot-swappable switches. I've had my Ergodox EZ [2] for ~7 years now. The biggest problem that happened was that some of the switches started malfunctioning - fixing which was a matter of literally 5 minutes. I don't think I would want to go back to non-split, non-ortholinear keyboards nowadays.…
The thing I like most is the split and I have customized the layout to my working style. I really should learn to use layers or try some of the "hacks" https://www.zsa.io/moonlander/printables.