On my PC I have 8TBs split across various SSDs (both NVMe and SATA). All of them have games folders. My Switch has 64GB of internal storage and a 512GB microSD card, though I do have a 1TB card ready to go. Just haven't taken the afternoon to pop it in and redownload my games yet. My PS4 is sitting stock with it's 500GB internal drive. My Wii U has a 2TB external HDD hooked up to it (I was very optimistic about its potential library).

The PC has over 2TB of just games on it. To be frank, it could very easily have a full TB more. But I don't feel like hunting down all the various launchers' folders at the moment. Honestly this is largely data hoarding. I only play a few of the games regularly. I keep telling myself I'll get to dealing with my backlog eventually, but I never seem to find the time for it. The Switch is nearly full, I could fit maybe two more retail games on it. Mercifully Switch games are still pretty small as a rule, I have a library of about 80 games installed on it. Once again this is a case of data hoarding. The majority of the games are ones I have either beaten or played my fill of. I just keep them installed for no particular reason. The PS4 stores more dust than games nowadays, but if I recall I had five games downloaded and they used up somewhere between 300 and 400GB. I've honestly considered selling the thing, but I can't imagine anyone wanting to buy it given its condition. The Wii U, as you might imagine, has vast quantities of space available. Still, I somehow managed to use up a bit over 100GB on the external drive. The largest game I have installed on it is Breath of the Wild at 19GB.