Re: "submit complaints"
Why do you think *the USA* is more likely to do this than other governments? EU Governments make far more lawful intercept requests than the US. I can’t give you too many details, but certain EU countries are *prolific* users. This link might give you a flavour of the numbers. Remember, these aren’t total figures, just Vodafone alone.
https://www.vodafone.com/sites/default/files/2021-02/Vodafone_LED_country_by_country_2017-18_AW4_V3.pdf
Some countries might surprise your preconceptions. Italy, for example: 42k legal intercepts, and 116k phone records, for Vodafone alone.
Also, you might be interested in this comparative study of world surveillance.
https://tmt.bakermckenzie.com/-/media/minisites/tmt/files/2017_surveillance_law.pdf
Your particular concern was whether a government would use surveillance data for economic advantage. To which the answer is: France DGSE do this fairly routinely against other EU companies.