When it hits 'release to market' status.
In its Dev/Insider state you are supposed to use the driver supplied with the OS.
Yes, it is included with the Dev/Preview build version updates.
If you want to keep up with info on the OS, have a look at this site https://www.elevenforum.com/
I believe there is a UWP version for Dev./IP builds.
Someone on Win.11 forums will know how to get it.