I'm a near last letter surname. It's not uncommon for arbitrary things to be sorted by name, but a ton of official things use surname ordering. There's things that also I tend to seem to be last on where I don't know the sorting method, but I suspect it isn't uncommon for someone to just throw in a sort somewhere (though it's also common to see people do things in a LIFO so disadvantage people who get shit done on time... My apartment renewal does that...). I also remember getting a PCR test in covid where they binned by last name.

I can just say I do remember being last in a lot of arbitrary and official things and seeing other friends just get done with it faster and have to waste less time sitting and waiting.