@[email protected] That extension is more for freehand drawing. For pre-made shapes and diagrams, you can use the Draw .io extension instead:
Freehand drawing: https://joplinapp.org/plugins/plugin/io.github.personalizedrefrigerator.js-draw/
Draw .io: https://joplinapp.org/plugins/plugin/com.github.marc0l92.joplin-plugin-drawio/
Any suggestions about Gnome extensions?
I use Gnome on a 42" tv the only thing I've done is increasing zoom level since the couch is a bit far from the screen. In the browser I set up the new tab screen to have big icons that link to some of my bookmarks, using a browser extension. That's all I've done compared to a vanilla setup. I have been using that for a few years with no issues but curious about how I could improve my experience!