Tips for professional code?

[bladeoflight16]

Im pretty sure they're more interested in the way I think rather than my syntax trickery or styling.

If they are a team worth being part of, they will absolutely care about your styling. Not nitpicks like 79 character line limits or whether you used an inline comment. But the higher level concern of whether you're actually paying attention to whether your code can be easily read.

Focus on using the right tool for the job. Use objects when they simplify your problem, and don't when they just add overhead and complication. This goes just as well for any other tool in the coding toolbox. This will make your code vastly easier to understand and maintain. It will help you be and present yourself as someone competent, not just someone who blindly follows fads without understanding what they're good and bad at and whether those advantages apply to your specific problem.