Let me see if I understand your question correctly. And if not, please, ignore my reply.
You are wondering whether it is possible to have the processes available in UiPath Assistant to be automatically updated to the latest available version in Orchestrator? Am I correct?
If I am then the answer is that this is not the case. Since the UiPath Assistant is aimed at Attended automations, this means that the end user is in control of what is running in his environment. So the end user has to make the choice to update to the latest available version, which is visible to him by the subtext ‘a new version is ready to be installed’. Just imagine a developer deploying a newer version where suddenly Edge Chromium is being used instead of Firefox and not everyone has that installed yet. An automatic push would make the process not working. Being informed by the developer if there are any changes, for instance in release notes, would allow the end user to update first to Edge Chromium and then install the latest available process.