why does it show do i own this game or app on a game i already own

My name is Fernando I'm an independent consultant, I'm happy to help

What device are you experiencing this on? Does an error message appear? Have you tried accessing other devices to see if the same message happens?
Let me know so I can help.

Do you own the game on disc or digital? If it's disc, then that will be why the game does not show in your library on PC, as you need to own the digital version for that to show up in your PC library.

It shows I own it but ut does not appear in my apps and games

Sounds like an Optical drive issue OP, where the disc drive doesn't recognize that a disc was actually inserted, one trick is to slightly hold the disc by the outer edges while the drive attempts to pull it in, then let go.

Often, this trick will suck the disc in a tad further thereby FULLY activating the disc inserted mechanism. If no joy, call support.

Important, never place a finger in the center hole of a disc while attempting to insert a disc. If your finger gets stuck in the hole of the disc while the drive attempts to pull it in, you could lose some flesh. Yes, I learned that the hard way. lol

The only option that shows up from the store is tapping on it to purchase it, but then it says I already own Netflix and to check my games and apps, when I do it doesn’t show up