Hi Stefan ,
Another Amateur question, so this page says that the Aug PU is part of Aug CU, as it has the same KB associated. This link (https://docs.microsoft.com/en-gb/officeupdates/sharepoint-updates#sharepoint-2016-update-history) does not say whether the update is a PU or CU. How to actually decide if its a PU or a CU ? Is your blogs the only official source ?