The lack of tracking is also nice. I’ve found it to destroy the performance on my older tablet, and Kbin, while also not entirely lightweight, does run surprisingly well for what is basically a modern social network. It’s got some minor issues, but it’s fairly usable.
If it’s not already there, it might also be worth raising the issue on the lemmy-ui github, just so the developers can see it, and can add to the list of features to implement. If it’s important enough, they can bump it up the list as needed.