Teachers considering the USA or Russia - what’s been the hardest part so far?

Hi everyone,
I’m curious to hear from teachers who’ve explored teaching opportunities in the USA or Russia.
The information out there can be incredibly contradictory, especially around:

• qualifications
• visas
• school legitimacy
• contracts
• salary steps
• background checks
• cultural expectations
• relocation

If you’ve ever considered either country, what has been the most confusing, frustrating, or overwhelming part of the process?

I’d really appreciate your insight - understanding the real challenges teachers face helps all of us.