If I'm reading a list of names like in a contacts app (e.g the example), I find it much easier and a better experience to skim entries if they have equal height and spacing. Having the trailing characters of a long last name being replaced with ellipsis is completely worth it to get the speed of skimming the list.
If I actually need to interact with the person that has the long name I'm going to click their entry and get their full details anyway.
If I'm reading a list of names like in a contacts app (e.g the example), I find it much easier and a better experience to skim entries if they have equal height and spacing. Having the trailing characters of a long last name being replaced with ellipsis is completely worth it to get the speed of skimming the list.
If I actually need to interact with the person that has the long name I'm going to click their entry and get their full details anyway.