I like lutron caseta, but I believe those do not fit the bill here. The light on the side may reflect the current light level, but the slider doesn't move. I had some levitron smart lights previously and while I wouldn't recommend them, they had two buttons instead of a physical slider to adjust brightness and avoid the problem altogether.

We installed a Lutron Sunnata to replace a 3 way and dimmer. They are awesome, with a capacitive-touch LEDs bar graph replacing the slider. They feel really like the right solution.

https://residential.lutron.com/us/en/stand-alone-controls/su...

The newest Casetas are called Diva, and are basically like rockers that are stateless (return to a neutral position after tappdiva, again you can't have a true state-perfect switch, unless it's motorized and to my knowledge nobody makes that.

I have a couple of these and they're great, it feels (and looks) like a regular switch.

There was a UK start-up a few years back that did make motorised light switches but they didn't stick around long. I'm blanking on the name, though.

Here we go - it was Den Devices: https://automatedhome.co.uk/new-products/den-automation-laun...

Awesome. Kind of a shame they didn't take off.

Couldn't on/off switches also be achieved with an electromagnet without the need for an actuating motor of some kind?

- State A (on) - power the device and power the magnet so that the switch moves.

- State B (off) - power off the device and the magnet, a spring moves the switch.