I’ve touched upon this here.
In short, this iShares ETFs tracks a “sector neutral” index that retains sector weights according to vanilla MSCI World.
I think it’s a good idea to invest reasonably diversified across sectors. And while I think that it might be academically interesting to, ceteris paribus, isolate that “quality” factor, I see no reason whatsoever why that would be desirable as a fund to invest in. Sector weights on stock markets aren’t a representation of the “true” economy. It’s more or less just a random number - or a function of what companies go public (which might differ greatly between different countries, for accessibility of equity markets, regulatory reasons, etc.).
MSCI World Quality
MSCI World Sector Neutral Quality Index
(Side note: I hate it how MSCI always choose different start dates for the graphs and annualised comparisons in their factsheets)