$5-$10M sounds about right if you come from a higher expectations demographic (e.g. minimum of having a college education and likely with some masters level work in a higher income field - tech, healthcare, finance, law, etc…). Also really depends on where you live since $2M seems to be a cutoff for decent housing now in certain areas (e.g. most of the gateway cities).
That said, $1-$2M in most places in the country is quite a lot of wealth and so Nery’s post makes sense. If you can shed a lot of frivolous spending and live a more middle/u-middle class lifestyle for most things then $1-$2M is quite comfortable.