I found a similar topic from over a decade ago on this without any replies and was surprised its not requested more often..
Curious as to why there's no option to trigger the backlight momentarily for a set number of seconds (or as long as a button is pressed) when the screen is locked. Having to slide the hold switch off and back on to light up the screen also changes the display to a different UI (with my theme I can't see the battery unless I'm on the hold screen for example)
Seems to make sense you'd be able to tap a button and light up the screen for a moment VS having to unlock it entirely, is this an option?