I have several apps, including Chrome telling me I need to update to OS 11. However my 2012 Mac Mini will not update.
Earlier Mac models
10.15 Catalina is the highest macOS that a 2012 Mac mini can run.
If you need to run newer App versions, then it's time to consider replacing the 2012 Mac mini with a new Mac mini.
Google claims that Chrome will run on Catalina.
https://support.google.com/chrome/a/answer/7100626?hl=en
I believe that Firefox, LIbreOffice, and the commercial Affinity V2 applications will run on Catalina, as well.
However, Microsoft and Adobe have a policy of supporting only "the most recent three". Neither Catalina nor Big Sur make that cut, and in a few months, when Apple releases Sequoia, Monterey won't, either.
2012 Mac Mini OS Problem
