burningpaper27 Hi, that's expected if you are on the stable release channel. GrapheneOS checks regularly for updates so once and if the release goes to stable then your phone will install the new release.
I quote from https://grapheneos.org/releases#changelog
Releases are tested by the developers and are then pushed out via the Alpha channel. The release is then pushed out via the Beta channel shortly afterwards. Finally, the release is then pushed out via the Stable channel after being tested by some users using the Beta channel. In some cases, problems are caught during Beta channel testing and a new release is made via the Beta channel to replace the aborted one.