Updated my Samsung phone and it installed unwanted apps

Disable "Mobile services manager". Samsung phones are lousy with crapware these days so I would avoid them like the plague. An eldery relative asked me why he kept seeing ad popups and his device had something called "Samsung Free" that cannot be disabled or completely turned off which pushes news articles, ads and other shit at him. I just turned off as many "interests" as I could and attempted to opt out of the software but it's still there and swiping left on the home page re-enables it. Samsung phones are absolute dogshit these days. I wouldn't go near one unless they could be rooted and flashed out of the box.