At 100% zoom on Firefox and Edge, the tops & bottoms of lower case letters have some very strange thinning/bolding going on. The top of the `e` char in "Syed Ahmed" is thinner (maybe 1px in height) than the lower curve of the same `e` character (maybe 3px in height). It looks like they have different font-weights for the top and bottom of the characters somehow.

Zooming in to 125% the effect goes away, and the font-weight at the top and bottom appear equally thick.