Someone needs to make a guide of how to use game pass as the quality library grows I’m lost in what to play, how to play, etc. should I dabble in everything for 20 minute intervals? Make a list and power through one by one? So many games and no time.
Here's how I manage it. When I first signed up, I went through all the games and hid the ones that I've already completed/played or never want to play. Whenever I finish a game (whether that means completing it or deciding it's not for me), I uninstall and hide them. As of right now, there are only 60 games showing in Ready to Install when I go into Game Pass.
When they add new games, I do the same review process. Anything I've already played or don't ever plan to play gets hidden.
I look through the remaining games and see which ones I'm most excited to try out (alternatively, ask yourself, "which games, if they removed them from GP today, would I be most sad about or regret not having tried?"). Then I install the top 2 or 3 of those games. Play/try them. Uninstall and hide when done. Then repeat.
Also, if you do Rewards, I would recommend not playing new games right away. They usually have Reward quests for new games the next month. So all the new games they added today -- I'm not bothering to install or play them til I see what the December reward quests are.