Does Forza Horizon 4 Xbox one console Disc saves all our progress?

Yes, the game saves all your progress, including cars, clothing, money, and what races you have done in the game. It's all done in the cloud, so if you play the game on another Xbox One/SeriesX|S, then you can continue were you left off.

i still have all my progress in forza horizon 4 after trying this i checked if it was saved before by going on my games and apps then i pressed more options on forza horizon 4 and selected Manage game and add-ons and scrolled down to the Saved data tab
and it says there is 10 MB of reserved space for forza horizon 4.not sure if this is the correctway to chech or if that tells me it is saved but it worled for me. hope this helps.

Forza Horizon 5 does NOT have any announced or planned cross-progression from Forza Horizon 4. Aside from Forza Horizon 1 (which did had loyalty rewards for Forza Motorsport titles), there has never been cross-progression for Forza Horizon titles. You always had to start fresh with each game.

And about Forza Horizon 4: the lack of possibility to use the same save between Steam and Microsoft Store comes from the technical point of the each game. Both use a wholly different methods of saving which is far too much work to make them co-operate, ESPECIALLY considering that Forza Horizon 4 is way past its' prime.

All of your local progress is gone. The progress from your last successful sync still exists in the cloud. In many games, Forza Horizon 4 one of them, the game does not save your progress until you complete the tutorial (and often a mission or two).

With clearing out the local save and the cache, you should be good to go with a fresh sync of what was on the cloud. Good luck and see you in game!

Hello

If you have all ready deleted the save data from the console and it re downloaded the save that one will be the latest save from the cloud and will be your current progress.

I have seen quite a few issues with Forza Horizon 4 Save system my self.

Best thing to do is to Fast Travel to a House or Event Hub and then drive 5 seconds it seems to save fully during the fast travel.