At this same time, this feels like No Speaker Left Behind. Now that I am middle aged and have a nice sound system at home and in my car, I sort of want a mix optimized for THAT! Like, don't hold me back just because we're still mixing for AM radio in a 1983 Pontiac Firebird!
(The artists, on the other hand, always worked in dark rooms and with their monitor contrast cranked up. We'd constantly complain about the dark, hard to see graphics.)
I was told, somewhere, some guy was blasting himself with a giant speaker array tweaking the levels on Hit Me Baby One More Time, before it could be printed to masters. A mental scene that has lived rent free in my mind for decades.
It still blows my mind that consumer grade CDs and LPs were the source for radio broadcasts and such.