internet web pages are not updating

A lot of my web pages and Google/Bing search results are not updating. It's showing the same articles and posts that have the dates updating. All the websites have not been updated for the past 2-3 years. Especially my states news website. A T-Mobile service rep has told me to just download a news app rather than attempting to help me fix this problem. my Twitter is also called X for some reason now. Can you guys help me this?