Yes.
Number of games that are backward compatible out of the total released [0]:
Xbox : 63/996 (6.32%)
Xbox 360: 633/2154 (29.38%)
As you can see the numbers are very disappointing.
[0] https://en.m.wikipedia.org/wiki/List_of_backward-compatible_...
Number of games that are backward compatible out of the total released [0]:
Xbox : 63/996 (6.32%)
Xbox 360: 633/2154 (29.38%)
As you can see the numbers are very disappointing.
[0] https://en.m.wikipedia.org/wiki/List_of_backward-compatible_...
All of the original publishing contracts allowed Microsoft to sell Xbox/Xbox 360 games on those systems specifically, so Microsoft had to seek permission from each and every relevant third party publisher before making each title backwards compatible.
From what I understand original Xbox compatibility on the 360 was similar, with 462/996 games ultimately being compatible "officially" (https://en.wikipedia.org/wiki/List_of_Xbox_games_compatible_...). But with a jailbroken system compatibility is actually a fair bit better (https://consolemods.org/wiki/Xbox_360:Original_Xbox_Games_Co...).
Afaik there is no similar jailbreak for Xbox one/series, but if anyone ever does manage to get their internal emulator running with arbitrary titles I wouldn't be surprised if a lot more games work than their official numbers suggest.