Basically the question stated in this article:
www.pcgamer.com
What is the biggest game on your PC and what is your deletion protocol?
I'm not at my PC right now, so I can't check, but I have Baldur's Gate 3 installed which is around 150GB and I don't think there's anything significantly bigger installed.
As for deleting games, I usually uninstall games as soon as I'm done with them. However, I have a large collection of games installed for my kid and my wife cycles through multiple games as well, so I still have a ton permanently installed anyway.
I also frequently abandon games halfway through, thinking I'll get back to them eventually. These games usually get deleted when I try to figure out what to play next and realise it's not any of those games.

What's the biggest game on your computer, and is it really worth the space?
What's eating up your SSD, and does it really deserves all those gigabytes when you could have more photos of your pets?
What is the biggest game on your PC and what is your deletion protocol?
I'm not at my PC right now, so I can't check, but I have Baldur's Gate 3 installed which is around 150GB and I don't think there's anything significantly bigger installed.
As for deleting games, I usually uninstall games as soon as I'm done with them. However, I have a large collection of games installed for my kid and my wife cycles through multiple games as well, so I still have a ton permanently installed anyway.
I also frequently abandon games halfway through, thinking I'll get back to them eventually. These games usually get deleted when I try to figure out what to play next and realise it's not any of those games.