Advanced Access is typically 5-7 days before official release.

https://www.footballmanager.com/news/football-manager-26-launches-4-november

Advanced Access will be available on Steam and Epic Games approximately 2 weeks*** before the official street date. Single-player careers started in that period can be continued when the game updates for launch on 4 November.

***Early Access may go live at different times on different platforms.

Does this Steam version of the game give access to the earlier beta version?
If yes, Can you please show me where is this information about early access?