do handlebars 'expire'?

[vqdriver]

i jumped on the flat tops bandwagon fairly early with the aluminum fsa wing pro compacts. but now that i think about it that was like 15 years ago. over that time i've changed up my groupset and fit so the clamp areas have see some stuff.

do these things have any type of a fatigue life that i need to know about? total mileage on them is unknown, but not a lot as you all as i transitioned to mtb after some close calls on the road.

alternatively, i'm getting the bug to tinker so what's the new hotness in bars with a flat top section and shallow drop? are the riser drops still a thing?