Additional meeting and call-related features and issues within Microsoft Teams for business
I've just been through this with a client. They have M365 Business Standard licenses, we added Teams Premium licenses & waited for the Premium features to become available (stupidly long time BTW, 24 hours to provision? Please). Once Premium was confirmed & the policy was set, the toggle simply would not show for the Premium users under any circumstances.
We tried everything & nothing worked. Research led me to this article about the license changes April 1st 2026: https://windowsforum.com/news/teams-events-licensing-changes-2026-enterprise-features-premium-legacy-limits-and-attendee-packs.446175/
As the article says, hide attendee names was initially dropped from the foundational tier (M365 Business Basic/Std/Premium), but later advice says that it was still included.
Out of sheer frustration, we started a Teams Enterprise trial & allocated a license to the users who required hide attendee capability, leaving them with M365 Business Standard, Teams Enterprise & Teams Premium all allocated (which shouldn't be the case, but any way). The result was that within an hour or so, the toggle appeared for the users!!!
Going by my experience, the OP's experience, & the experience of countless numbers of people who have acquired Teams Premium licenses after April the 1st 2026 (just do a quick Google search), it seems that this feature hasn't been properly reintroduced to the foundational tier with Teams Premium, & only legacy users (with a Teams Premium license from prior to April the 1st 2026) have this feature.
It's a complete shambles & it would be nice if someone could fight their way through the support bots & get to a human who might be able to do something about it.
Cheers,
Justin (Sydney, Aus)