Where I work there’s a building that was built in the 70s and it also has of of these switches. I’ve been asked to replace it (the time lag isn’t lasting very long these days) and I can’t find them anywhere. The closest I can find is a timer switch (search Enerlites HET06A Countdown Timer Switch on Amazon) but apparently, in order to use the regular on/off feature of the switch (to where you can turn the light on and leave it on until you turn it off), you have to push and hold the main button for 6 or 7 second. No one wants to do that for normal light switch use.

You recollect 18 more century