One thing that didn’t come up in the Discord discussion: [aria-labels are based on the language Obsidian is set to. So [aria-label='Alias'] works in a bunch of languages, but not in all.
For example, in Japanese is needs to be [aria-label='エイリアス'], Turkish [aria-label='Rumuz'] and so on.
I think using [aria-label='Alias'] (for example) is totally fine in personal snippets, but something to keep in mind and may need adjusting if Obsidian isn’t set to English.