My first PC gaming year was 1998 after being nothing but a console gamer since an Atari 2600 gotten for Christmas in 1982. For that new PC, I had Quake II and Half Life 1. I was blown away by the graphics on a Dell 19" 1600x1200 CRT monitor over the PS1 and N64 on a 480P tube TV. The first and only ever OEM PC I bought for dedicated gaming, a Dell D333 with a Pentium II and Riva TNT GPU, came with a 4.3GB HDD. To memory refresh, 1997's Quake II was 45MB and 1998's HL1 which was more than triple that at 150MB. I still have the original discs (and that Dell 333 and 19" CRT). The jump to 150MB for a game back in the late 1990s caused quite the stir.
Fast forward to today, and MSFS requires nearly 130GB just for admission to entry with each new update adding more GB every few months. The storage space requirement for COD Modern Warfare Warzone is 175GB and Red Dead Redemption 2 is 150GB with Forza Horizon being 110GB. Not long ago people were aghast at 50-75GB games, especially on consoles. The bottom line is that I don't see any difference in these ever increased storage space numbers compared to the past when each new generation of game was programmed for higher and higher resolution textures for higher resolution monitors, bigger open worlds, and of course exponentially increased complexity of texturing for more realism.