How do people actually use quantitative trading research in practice?

I’m trying to understand how quantitative and systematic trading research is actually used in practice across different types of market participants.

A lot of research is published publicly or semi publicly in the form of systematic strategies, academic style papers and historical backtests. They typically present a clear idea, historical performance and theory, but offer limited guidance on real world deployment.

I’m curious how this research is used by people with different levels of experience, from independent traders to professionals working at funds or trading firms.

When you look at external quantitative research, how do you typically use it?
Is it mainly a source of ideas, a validation reference, a learning tool, or something else?

What are the main gaps that prevent research from being deployed in real trading?
Is it regime changes, implementation complexity, risk management, portfolio context, or simply lack of time?

Would there be value in deeper applied interpretation focused on when a strategy should not be used, how it behaves across regimes, and why it tends to degrade over time?

Not signals. Not performance promises. Just understanding how research translates into real decisions.

I’m not promoting anything here. I’m genuinely interested in how different participants bridge the gap between published research and real trading.

Appreciate any perspectives or experiences.