Chrome Mobile is Testing Showing Thumbnail View of Browsing History on Homepage
https://www.reddit.comGoogle might be running a new test on Chrome mobile for some users. The startpage of the browser may start showing a Continue Browsing section with thumbnails of your recent browsing history.
You might be able to disable it by going to chrome flags and disable start surface, tab grid layout and tab groups and then force close chrome couple of times in order to restore chrome to old way