Will Forza Horizon 5 available on Xbox One S?

Forza Horizon 2 Xbox One runs on Forza 5's engine, Sumo to create Xbox 360 version

Different teams and supporting technology for the current and last-gen editions of FH2

www.totalxbox.com/.../forza-horizon-2-xbox-one-runs-on-forza-5s-engine-sumo-to-create-xbox-360-version

Yes. Other games are OK.

Forza horizon 4 is OK too. But I bought it.

And Forza horizon 5 uses Game Pass.

I can start Forza 5 on my PC, can not start on Xbox serious S.

You'd have to buy the game on top.

Do you mean Forza 5 or Forza Horizon 5?

If you buy gamepass ultimate then that includes xbox live gold & access to 100's of games on gamepass,including Forza Horizon 5 if that's what you meant.

Forza 5 has been delisted now i think anyway.

Is Forza horizon 5 and all new games going to be on disc? Because online services don't last forever while disc can last for 20 years or more, I still have a 19 year old GTA vice city disc and it runs well on ps2

Would love to see Sims bustin out for orginal Xbox on Xbox series X and s backwards compatibility

No clue about the other games but the Base version of Forza Horizon 5 will be available on disc whilst the Premium and Deluxe versions will be digital only...apparently:

https://support.forzamotorsport.net/hc/en-us/articles/4402249796243-Forza-Horizon-5-Announce-FAQ

If you had clicked on the link I posted you would have seen that the game will be available for the Xbox One consoles as well and the devs can put the Xbox one version and the Xbox series version on the same disk.