In general the producers really did do their homework to capture the time and feel of the 1980s, instead of just shitting out low-effort vaporwave. And it's bored generation X/Xennial parents, you insensitive clod -- millennials were born too late to even remember half that stuff.
Even the Tandy 2000 wasn't shown completely accurately. It was shown with a monochrome monitor option, but the display was in color. And the font was wrong; this was the default Tandy 2000 font (it was reprogrammable, but almost nobody did that): https://int10h.org/oldschool-pc-fonts/fontlist/?4#tandy
There's a bit of wiggle room here for artistic license. "Just repeat to yourself it's just a show, I should really just relax..."
Geez, as someone who doesn't actively watch TV (whatever the tween children or my millennial wife is watching), you're making me feel even worse about wasting time slogging through the entirety of the most recent season.