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Imo cover your shit in monitors or displays of some type showing constant feeds of information. News, stocks, forums, social media, etc. A true cyberpunk apartment would be rather minimalistic and dirty, obviously since the common citizen of cityland is a victim of megacorp and can't afford shit. But it would be a lot more aesthetic to embrace the renegade sociopath hacker living in cyberland. Using the abundant tools produced in that society to get the edge against megacorp or Hopefully you have a small apartment, ideally a studio apartment. Mattress on the floor, kitchen with no dishes and only /some/ cutlery. And the rest of your aesthetic dedicated to just constant feeds of information. A big aesthetic of cyber punk is the overabundance of advertisement anyways. Screens are plastered all over the skyscrapers of the city showing adds for plastic surgery and appliances. Recreate that in your apartment Anon.
Asides from that, check out the apartments from shadowrun returns and VA11 HALL-A. VA11 HALL-A kinda leans between cyberpunk and 80's girl aesthetic though. Take the personal decor and decals from it and blend it with the renegade vibe from shadowrun and I bet you're golden.