Google and Apple (and everyone else) have a blanket ban about COVID since the world has been littered with apps and scams trying to profit off the pandemic.

Your app promotes COVID content (among other things) so it gets banned on sight. It's super clear cut, don't do that!

You can try to implement a filter to remove articles with specific keywords (covid, virus, pandemic, etc..). Besides that, don't know if it's good enough to pass requirements for an app (don't think a simple web reader can pass).

Please don't call that censorship. To call this censorship is a disgrace to countries where there is real censorship, people being beheaded for saying anything.