If you look at web traffic when making Gemini web requests, you'll see that Bard is still in the URL (so are LaMDA (pre-bard) and Assistant (pre-GenAI)):

gemini.google.com/_/BardChatUi/data/assistant.lamda.BardFrontendService/StreamGenerate

Bing Chat suffered the same fate

Didn't they also just shut down Vertex and Gemini APIs to launch a new unified API this week?

lol already forgot about bard like it was ancient history