Recently I switched to a Logitech K380, a tiny thing with quiet, soft and effortless keys. I suppose it's the complete opposite of a mechanical keyboard.
It's more complex than simply "soft and effortless". For fast accurate typing, many typists need activation feedback and the absence of a hard stop. Mechanical switches have a range of force curves to choose from. The force curve of this Logitech is unknown (and probably unknown even to Logitech).
If I had to use this device, I probably couldn't type all day. For me personally, an ergonomic mechanical keyboard is pretty essential.
Effortless is not the issue. A clear sensory indication that you actually pressed the key is what's important. Yes, a quiet electronic keyboard takes less finger movement and less finger effort--but the effort for the mechanical isn't enough to matter and the mistake rate is a lot lower.
One of those soft electronic keyboards--say, the one on my laptop--and I don't dare think while my hands are on the keyboard.
https://www.logitech.com/en-us/products/keyboards/k380-multi...