Because Gems have been deprecated and the feature is no longer available in Gemini. AI tools are moving away from separate custom bots towards skills, so the idea of saved instructions now lives under a different setup. There is no point looking for the Gems menu.
More in Choosing an AI Tool
How do I share a Claude Artifact?
Only on a paid Claude plan, as the free plan no longer has publishing. If you have the feature, you will see a publish or share button on the artifact, which gives you a hosted link anyone can open. If you do not see the button, you cannot share it.
Can I use work Mode in the Free version of ChatGPT?
No. Work mode is only available on paid ChatGPT plans. On the free plan you can still chat, upload files and use many everyday features, but the longer, more independent tasks that work mode handles need a paid subscription.
Does AI work Mode keep running if I close the window?
No. Close the window and the task stops, then it carries on when you reopen it. Even complex work mode tasks usually run for about 20 to 25 minutes, not hours. For long or scheduled work, tools like Claude Code or Codex go further, but they also stop when your computer is off.