Some hosts already show a higher installed version, e.g. 25.206.1021.3.

That can look a bit odd because the “recommended” version may appear lower than what you already have. This is happening because the OneDrive client will auto-update itself shortly after.

SecTeer will continue to show e.g. 25.184.921.4 as the latest available patch until Microsoft publishes a newer build as the default downloadable installer. The same is the case for certain other Microsoft products such as 365 Apps and Edge too, where Microsoft tend to release some undocumented pre-release versions or at least versions that aren't available for download via the usual official sources.

We plan to release and maintain OneDrive patches as soon as a build is officially available for download.