“Installation stopped” comes up when I’m downloading an Xbox one disc game onto my series...

The disc is very likely damaged, just damaged does not necessarily something you can see it's often microscopic and your disk is 11 years old

If you're trying to download on the play store, they don't have the game, this is an Xbox game not Google

I can't help with anything to resolve it.

I will say that, when I bought FH2 on disc back in 2020, I encountered the exact same issue with my Xbox One X...it would install from disc for anywhere from 5-30 minutes and then installation stopped. Didn't have the issue with my FH1 disc nor any other discs and FH2 installed without issue when I installed it onto my Series X.

It ended up being an excruciating process of needing to go to games and apps and click to continue the install process each time....it took me the best part of a week in the end to install it and that was with it installing between 6 and 10 hours a day.

It is say "installation stopped" whenever I try to download it

It may be doing the same as my disc did (interestingly the disc had no issues with my Series X)....whenever it stops, manually resume it and see if the % goes up...it can be arduous if it's stopping every couple of minutes. If the % isn't going up even after an hour of restarting it when it stops, then it's another issue

Also, I’m having the same issue playing my 360 games on my Series S, my Xbox Live account won’t download onto any 360 game on my Series S.

So so long as I long into the Xbox Series S/X with my account, the one I use to buy the game, I download the game onto the console? I’m just making sure because the Xbox series S belongs to somebody else in my house hold, but I’m still able to use it even though it’s not mine. I was just trying to see if I logged into the series S with my account I could just download the game on there and then play it from there.