I’ve found garlic can go a long way when you’re cooking without onion, though it definitely depends on the recipe.

Check out Trilium Next! It’s under more active development after development on the original project stopped.

Many smart TVs allow you to disagree to the privacy policy during setup, which allows you to use it as a “dumb TV” which doesn’t connect to WiFi or have other apps installed. I know Sony TVs do this and I’ve heard others do the same.