Dealing with too much white space

I am working on some wireframes for an app. The app has a lot of short flows that usually require filling two inputs fields or have a small FAQ as seen in the examples below. I tried looking the internet for some suggestion but nothing helps.

I`m looking for some standards or best practices.

I tried a few variations but all seem off in my opinion.

1. Aligned left small container.

2. Full width container and content

3. Full width container with center content

4. Center content