The one elven thing I do notice is Halsin meditates instead of sleeps. But yep, that's as far as elven culture goes. Because the game takes a very vulgar approach and philosophy. It doesn't want to be Tolkien, it wants to be Critical Role, cynical and meme-filled.
Elves are also supposed to be preternaturally beautiful, but good god are the male elves just ugly outside that single face option. Even when they're old, they should look angelic and ethereal, not haggardly and worn down. Male elves lack beautiful face options because they basically chose one conventionally attractive male face option that's young with a good jawline and chin, and then the rest of the phases are old and haggardly or their attempt to include African or Asian ethnic features, but it's not even young and attractive looking male Asian or African faces, it's really ugly ones. As a result I predict the vast majority of players who roll male elves will have that single male elf face since the others are just so thoroughly unattractive, and people don't play elves to be ugly. They play them to look regal, as close to eternal and ethereal as it gets.
By the way, this applies to other races. You'd think the tieflings would have more comment on their appearance and among themselves have something to say about Mephistopheles/Asmodeus/Zariel lineage, but not even close. The plight of tieflings is not that they are a devil touched race, but that they are a stand in for your stereotypical refugee and the mean natives who refuse to accommodate and help them.
I have to disagree on halfling/gnomes, though. I find male gnomes pretty cute in their endearing gnomish way. The halfling males are unfortunately fat with a double chin unlike the females, but they're OK.