If something is supposed to happen by a certain day, it means it is supposed to happen not later than that, so it includes the day as well.
“Due by [date]” normally means the thing is to be submitted— BOTH anytime before that date, AND before the relevant closing time on that final date itself.
By means not later than, on or before: You need to leave by the 5th. → You need to leave on or before the 5th. (The 5th ends at 11:59:59 p.m. just before midnight.)
The RTX 2070 Super is still quite a premium card in 2021. It can run most AAA titles at 1440p at High-Ultra settings and get 60 FPS quite easily, so it would be safe to call it a high-end card.
With 30 GB of data you could binge watch about 10 hours of HD quality Netflix films. If you choose to watch your movies in SD then you could watch closer to 30 hours of films. It all depends on what your preferences are though. With 30 GB you could also stream about 10 days worth of high quality music on Spotify.