I thought they were stored on-disk in a non-encrypted SQLite database. So anyone with physical access to your computer has all your passwords.

The reason I don't is that those are not the only browsers I use. And I want my passwords available to me everywhere.

Yes:

* Sometimes you need to fill passwords on app login screens on your phone, for example. At least 1Password for your phone can do this.

* I sometimes need to fill passwords in non-browser apps. I can use a global shortcut to easily open my password list and copy what I need without touching the mouse.

* I want to store things that aren't passwords securely.

Etc

I don't use it because I need passwords on multiple mobile and desktop machines.

Do Chrome and Edge support autofill on other browsers? iOS apps? The answer might be yes just not sure. They are also missing features like secure notes, documents etc.

What if you use multiple browsers?