Choosing a level to Apply for a SWE job at...

So according to these https://www.levels.fyi/?compare=LinkedIn,Google,Facebook&track=Software%20Engineer https://www.quora.com/Facebook-company/What-is-the-expectation-out-of-each-software-engineering-level-at-Facebook I feel as if I am very close between Staff / E5 and E6 I know that some companies just have you apply for a role and level you in the interviewing process. This is a question about companies that have job listings at specific levels. Is it better to apply for the level you know you will be able to get? Or apply for the higher level? Will they downlevel you or just reject you? Thanks

Levels.fyi - Compare career levels across companies

Levels.fyi

What is the expectation out of each software engineering level at Facebook?

Quora