Microsoft Teams personal (free) get installed to Win11 with Windows updates?

I work in the corporate infra and we currently testing Win11 enterprise, 22h2. Freshly imaged PC looks correct having just one Teams classic (for Work). 

But I can see that test Win11 machine now has Teams personal installed along with Teams classic. Timestamps tells that personal one was installed at the same time as the latest Windows updates from the internet.

Question - if it really were Win11 updates that contained Teams personal, what type of updates are they?

How can admins control this and prohibit Temas personal installation on corporate devices?