FYI, if this is in regards to the 2025121700 release (or any new release), and your update channel is set to Stable, it doesn't matter how many times you tap the button, you will not receive the update until it is in the Stable channel. As of writing this, the latest Stable release is 2025121200
OP @Mark1769 hasn't provided what release they are on, if they have disabled system apps, or if the "Reboot to apply update" notification was dismissed. That would be a good starting point to understand the situation.