My observation is that research, especially in AI has left universities, which are now focusing their research to a lesser degree on STEM. It appears research is now done by companies like Meta, OpenAI, Anthropic, Tencent, Alibaba, among many others.
Universities (outside a few) just have much weaker PR machines so you never hear what they do. Also their work is not user facing products so regular people, even tech power users won't see them.