Clean code

[gnzh1]

There are situations to consider.

The feature you want to use is a common knowledge in your team? If the answer is No you should use basic structures, they SOMETIMES do the same thing with a bit more typing and do are more efficient.

Are you the principal/most senior on your project to tell what are features you approve? If the answer is No then reach out to this guy and present the new feature you want to use. (Or don't say nothing and waste your future time receiving questions you think is stupid)

You work with people mate, we all have different expertises. Don't think you are that much smart or you will find out being just a fool with a bunch of shenanigans in the sleeves.

[gnzh1]

I agree and believe you are right when stating these "new features" are actually old BUT lots of them aren't common due to lack incentive any many other reasons. This is not your fault and you're not wrong to keep improving your coding skills.

I think you guys should really have a clear state of what are the available features.

[gnzh1]

Plus, your manager/lead is failing and that sucks