The availability of these effects depends on the OS and hardware, as noted in the documentation: https://learn.microsoft.com/en-us/microsoftteams/hardware-requirements-for-the-teams-app
For Windows devices: Background video effects require Windows 10 or a processor with AVX2 instruction set.
@Maurita
Haven't received your update for a long time, any update now?
If the above suggestion helps, please be free to mark it as answer for helping more people.