This is besides the point anyway. The average user does not need more than 8GB of memory to do their average tasks. Everything they do is possible in 8GB which is proven by the fact mobile OSs and ipados do it just fine. The only reason for the average user to have 32gb of ram is because most desktop apps are insanely bloated. If Apple caps the platform at 16gb but most users use 8gb, it means developers will make their platform efficient enough to run well on 8GB since all users and the developers have that amount of ram.

If MS teams does not work properly on the 16GB macbook then you report a bug and they will fix it but if it doesn't work on a regular PC it is more likely they will tell you to just get one with more ram.