The MX Master mentioned in the OP is only kinda-ergonomic, this is what fully ergonomic looks like: https://www.logitech.com/en-us/products/mice/mx-vertical-er

The MX Master mentioned in the OP is only kinda-ergonomic, this is what fully ergonomic looks like: https://www.logitech.com/en-us/products/mice/mx-vertical-ergonomic-mouse.910-005447.html https://www.logitech.com/en-us/products/mice/mx-vertical-erg... Likewise with ergonomic keyboards which usually tilt upwards in the middle so your wrists aren't flat: https://kinesis-ergo.com/shop/adv360pro/ https://kinesis-ergo.com/shop/adv360pro/ https://dygma.com/pages/defy https://dygma.com/pages/defy