Google Lens has been AI-upgraded in the desktop version of Chrome, allowing users to activate Lens in the search bar and perform multi-searches within the current tab without leaving the page or opening a new tab. This feature is set to roll out globally in the coming days, although some search results will be limited to U.S. users. Additionally, Chrome has added a new AI feature that enables users to ask questions about their search history, such as 'Which ice cream shop did I visit last week?' This feature is expected to be available in a few weeks.