"Quasar" goes to luminosity, and our galaxy could never have been as luminous as any quasar we know of without some mechanism to totally block fast (matter) out

"Quasar" goes to luminosity, and our galaxy could never have been as luminous as any quasar we know of without some mechanism to totally block fast (matter) outflows and another to block the quenching of star formation from the negative feedback of a highly luminous galactic centre. Our central black hole is very quiet (as opposed to active), at least a dozen orders of magnitude below the Eddington luminosity in X-rays. Quasars are at (or a very large percentage of) the Eddington luminosity, almost certainly for at least Gyr durations. The Fermi bubbles are interesting, but around luminous AGNs (at all redshifts) we tend to find extended outflows in ionized ("hibals") and molecular gasses, and afaik we don't see anything like that associated with those gammas. AFAIR there is also a missing ~ 1250 angstrom restframe peak and an associated relativistic wind's redshift (0.1-0.2 c or 30-60 Mm/s) leading to line driving. About a decade ago there was a fair amount of discussion about the Fermi bubbles as evidence of a (not so high) luminosity AGN jet, but it seemed to require contrivances to drop in a sufficiently massive molecular cloud (~ 10^5 solar masses around 10^7 years ago, but don't quote me, not my speciality, and I was already convinced about the present << quasar luminosity (and no trace of tremendous variability or eruptive phase up to considerably more than a few percent of the Eddington luminosity) and by the stellar population).