THREE games?? Really?? Which games do you have installed and what are the file sizes? I have about 10 games installed on PS5 right now. However I really don't play that many different games at any given time. For the last 3 weeks or so I've solely been playing Ghost of Tsushima, while my kids basically rotate between Minecraft, Minecraft Dungeons, and Fortnite. The other 6 games I haven't even touched yet.
One thing I will say in this regard, downloading on PS5 is WAY faster than it was on PS4! So deleting and downloading isn't quite as painless as it used to be.