Xbox Game Pass and Xbox Save files

I should be saving it is the same cloud they use, check your save because if you came to create a new save and the xbox takes that one and updates it will erase your progress for the new one

I have played Forza Horizon 4 on PC and Xbox and my save data is the same.

When you started the PC version did it ask you to download your Cloud Save?

Hi. They probably are separate versions. The Xbox One and PC version may not share the achievement list. Some games would like Final Fantasy XV Windows 10 Edition, but Forza may not.

If I remember right the Play Anywhere idea of having your saves go between PC to Xbox and back to PC only applie to digital download versions of games, the physical version doesn't (or didn't) offer that feature.

This is taken direct from Microsofts "Play Anywhere" page.

" When you buy an Xbox Play Anywhere digital game through the Xbox Store or the Windows Store, it’s yours to play on both Xbox One and Windows 10 PC at no additional cost. To take advantage of Xbox Play Anywhere, you will need to have installed the Windows
10 Anniversary Edition update on your PC, as well as the latest update on your Xbox One console. Then, simply log into your Xbox Live/Microsoft account and your Xbox Play Anywhere games will be available to download. On your Xbox One, games will show as “Ready
to Install” under “My Games and Apps”. On your Windows 10 PC, games will appear in “My Library"

So it looks like it hasn't changed, you have to buy the digital version on Xbox to get the free PC version (or Vice Versa) and also to get the game saves to transfer.

Strange because it's a play anywhere game, and save is in the cloud on your account, are you sure you signed in with the same account for the ultimate game pass?