wouldn't xgboost be covered under autogluon? not perfect, but not missing either
I do still think ELO scores are still a way to obscure results though. For all we know this is like 0.1% better than a "normal" approach on like 70% of tasks and a tire fire on others.
https://huggingface.co/spaces/TabArena/leaderboard
xgboost is listed, they say "tuned" but who knows what that means. and its below CatBoost and LightGBM
as an aggregator of models (trees, neural networks, clustering, ...) AutoGluon doesn't really have a dog in this fight