I've just started doing this. It started because my daughter wanted us to play Grounded together and she's starting to explore video editing and wants to put those edits up on a YouTube channel. So, step 1: Record all of the playthroughs.
Now, even on my solo gaming time, I figured I wanted to record my own playthroughs as well. For editing purposes of my own? Probably. Just for general archiving and looking back at my gaming time? Maybe. In any case, I'm pretty sure I want to do this.
My chosen method of recording is via OBS and the size of the files comes around to something like ~10GB per hour of gameplay. So just imagine a game like Elden Ring for example where it's quite easy to have 100-hour playthroughs. That's potentially 1TB just for one game.
All things considered, what would be the best way to store and archive these videos of gameplay?