Magento can be quite a complicated beast at times, and the addition or more and more services only adds to this complexity.
When coming to an upgrade, looking into issues or assessing your current infrastructure it can be very useful to get a full list of the versions of each service you are using.
To aid in this you can run the following which will list out the version of each service.
curl -s https://raw.githubusercontent.com/MDOQ-UK/service-version-report/main/report | bash
If you wish to see the source of this file please see here.