I deployed Teams separate as it’s own app via the MSI file. However it now Installs just fine via office but you have to be on the monthly ring since it hasn’t pushed to the others yet is why you might not be seeing it with the office only Install.

Once it gets pushed out to other rings you’ll Probably start to see it install. I would just put it out in its own package and you’ll be guaranteed install instead since there is no difference in the installed version.