Checked on my Flip5. Was on May 1 version; had to Restart to update. After Restart, showed August 1 version. Another check showed yet another small update needed to download, required another Restart. After second Restart, now shows up to date.
On my Fold 5, I was showing the May version. It would act like it was updating, restart, would show May version still, repeatedly. Then I went to Settings, Apps, Google Play Services, Storage, clear cache. The when updating Google Play System it worked and now on the August version.