I have been trying to use the iPad as a laptop replacement for years. However, the behaviour of a connected keyboard has always been a source of frustration. Namely, the “space” key would often not act to insert a “space” character, but rather as “activate”. Which means, in many situation, it would trigger whatever button on the top/top-left of the screen instead; the “Back” button in a browser, for example.

Anyway, I finally found where to change this behaviour in the Settings app, and thought I should share it. The setting is in: Accessibility > Keyboards > Full Keyboard Access > Command > Activate

Personally, I replaced it with cmd+enter; but you can do whatever you want there.