Constituional cours are a last defense against bad laws though and should not be the first one - they are not designed to be fast enough to prevent a lot of damage being done before they strike something down.

Don't forget network effects. If other companies you are working with use Teams then there is less friction if you also use Teams yourself.

Right, and even when there are options that doesn't mean you actually get to choose what you want for all things you care about, e.g. there might be option A with feature a (e.g. no ads) and option B with feature b (e.g. no vendor lock in) but none with both a and b - so you only really get a choice for the things you care most about. Which is effectively why gradual enshittification is effective: Most users will put up with minor anti-features rather than jump to a different platform that will require new programs and/or relearning.

The same is true on Android.

Exactly, it's essentially (very much essential) infrastructure.

Yeah, this kind of crap is exactly what antitrust laws are supposed to prevent but governments don't care.

They still control PC gaming. Even Valve has long given up on disrupting DirectX and the Win32 API in general and is just translating whatever APIs Microsoft decides we should have.

Good for you. That doesn't change that millions of people rely on these daily, including many less technically inclined.