Can’t help on the specific model, but they remind me a little on the paddle-style switches found on old Kenwood stereo amplifiers.
If you look for paddle switches at e-switch or digikey, mouser etc, you might have some luck.
Generally ‘toggle’ switches have a fairly stiff feel, whereas the paddle switches (which are more like rocker switches with a paddle instead of a rocker) are a lot easier to ‘flick’.
Ahh okay the rendered image made them look like they might have had special ends…
These are cloned to death, you can find them everywhere, in a lot of very different feels, and degrees of build quality. If I’m getting it right, you want the type that will hold in the centre on a detent, but with a gentle push, will leave the detent, and are spring-loaded to jump to either extremity of the throw? I *think* NKK have some like that…