Of course it is. And from a user's perspective, I often hear people saying they are 'forced' to use it because their employers want them to, otherwise they risk being fired, but I have never understood how that behavior is considered legal, since it's literally coercing somebody to accept Microsoft's abusive privacy and service policies that explicitly state that unless agreed, their products can't be used.
I have never used Zoom or Teams in my life since I never agreed with their ToS&PP, and I've never been in a situation where my career would depend on it (I'm self-employed). When somebody asks me to join these, I nicely respond with that exact reason why I can't use them and propose using Jitsi Meet instead, and I have never experienced anybody rejecting it yet.