I'm a little suspicious that this isn't "all over the internet" since yesterday, but I also got an official email from Paramount/CBS from their spokesperson, Elita Fielder Adjei - VP of Communications, CBS Stations at Paramount Global:
Ryan Baker Leaves Stellar Career to Lead in Chicago Non-Profit Work CHICAGO — June 8, 2026 — CBS Chicago announced that longtime sports and news anchor/reporter Ryan Baker will depart the station after nearly two decades, concluding an accomplished broadcasting career spanning more than 35 years.
Unfortunately, there's a paywall to your News Blues link to this story, but this link also confirms.
It does contain comments from Regional President & General Manager Jennifer Lyons of CBS 2 Chicago as well as CBS 62 Detroit regarding Ryan Baker's "truly immeasurable" impact on the Chicago sports landscape. This link adds Baker signs off June 25:
on June 9, 2026, 9:10 am