Since there is no left-handed version of the MX Vertical, I recently tested half a dozen left-handed alternatives, and ended up liking this one the best: https://www.amazon.com/dp/B0C3D6853V
I've been using a left handed Evoluent but they never released the latest generation wireless left handed, and the price for the old version is 3x as expensive as it was a couple years ago (and they don't last very long, having owned a couple I get double/triple clicks within a year of buying it). I do like the separate middle mouse button though.
The gliding skates aren’t too great, I replaced them with aftermarket ones.
The RGB lights can be turned off permanently by long press on the DPI button.
https://perixx.com/products/perimice-513l