[Swizec]

> he can pass those interviews with no preparation

I've never had to prepare for an engineering interview in some 15 years of doing this professionally.

> the job takes way less effort compared to software

The easiest part of my job these days is writing code.

The challenging fun part is setting a technical strategy that aligns with the business and gardening the team around me with soft influence towards that strategy. Super challenging. Would've been easier to just do it myself, but there's only so much I can do on my own.

Ultimately, you should go do whatever comes to you easiest and/or is most fun. No sense grinding away at something you're not good at. Maybe your friend has an immense talent for business and strategy.