If they allow you to side load you won't need to make the app publicly available and so won't need a privacy policy.

Another significant difference is how useful the standard library of each language is, so that you can avoid 3rd party libraries.

Also the tendency in the JS ecosystem to break libraries into tiny parts, because it helps or historically helped to ship less code to the user.

If you mean on the globally replicated and stored forever blockchain, I think it's 50/s or something like that.

At that point you're just as vulnerable to a supply chain attack.

Low level employees are always taking far bigger risks in relative terms, the worse position a CEO will be in if all of his "risk" hits him is that they'll have to become a regular low level employee.

But make no mistake, it is very important for Microsoft and leadership, or they wouldn't keep updating it so much and talking about it so much on their keynotes and marketing.