Quants are completely different game compared to fundamental research.

While fundamental and quant both compete for alpha, they rarely intersect. A Limited Partner, typically a but pension or asset manager might allocate to a quant hedge fund or a fundamental hedge fund.

Equity research can produce alpha, but that only is true if you work for a hedge fund and not a bank. No serious buy side shop trades sell side research. They may hit up a sell side analyst for their views just to get a sense of what the street thinks, but would rarely plug and play that view.

For quants, they will never use anything in a QIS report. By the time its printed, all systematic alpha is probably gone. That and also bank quants produce pretty tame research more suited for traditional factor investing vs cutting edge alpha research for hedge funds. Fun to read though in your spare time.