Yes, if your question is about something that runs on Ubuntu, Ubuntu configuration, or basically anything else about Ubuntu, it is on-topic here. Unless it is about an [EOL release][1], then it isn't on-topic here, or necessarily, anywhere. Although questions on software recommendations and windows replacement software might get better results on: [Software Recommendations][2]

For more information on things which are on-topic here please read: https://askubuntu.com/help/on-topic


  [1]: https://wiki.ubuntu.com/Releases
  [2]: https://softwarerecs.stackexchange.com/