Found this video really interesting as I have a relatively large backlog myself. Fortunately not nearly as large as this one.
Personally, I’ve only ever considered games I own to be part of my backlog, which makes my list much more manageable. That said, I have a large number of unplayed games on both Steam and GoG. So to start I’ve decided to play all my GoG games first (as that is still within reach). I’ve promised myself not to buy any more games untill all my GoG games are either completed or marked “did not finish” due to it not being my thing.
Yeah, the idea of a “backlog” just sounds like a chore to me. I just try to not buy as many games anymore - I think Steam sales and similar events got people in the habit of buying dozens of games at a time, and then your library fills up with games you’ve never touched.
I don’t really buy games anymore unless I’m going to start them within the next week or so.