Let's put the whole thing in context. This bill is intended to prevent foreign governments[0] demanding that companies headquartered in US[1] modify their products and introduce backdoors.
The top bullet point in the press release makes it crystal clear: "Prevent foreign governments from using the CLOUD Act to require U.S. providers to adopt specific designs for products, reduce the security of a product, or deliver malware to a customer."
It looks like the intended outcome is that if a foreign government wants to investigate a US based individual, they must go through the official, international court-to-court co-operation request channels. US courts can then grant the necessary warrants and/or compel that individual to give up the requested evidence / other material. Isn't that how things are supposed to work?
Interestingly, this bill would also collide with Australia's similar law.
> Let's say I'm Microsoft and I operate in the UK ... UK can still contact Microsoft and has to respond if they want to operate there.
If and when cross-border laws collide and conflict, it should be up to the governments to sort it out. UK are perfectly in their right to require that Microsoft provides information and data on entities who reside in the UK. Demanding Microsoft to introduce backdoors to their products or deliver malware to individuals would go far beyond that.
Personal context: Finnish, living in UK.
0: in this case, UK
1: as a trigger in this case, Apple