https://www.irs.gov/publications/p54#en_US_2022_publink100047372

Table following this section. Won’t formate correctly for me to paste it here

"Earned income.

This is pay for personal services performed, such as wages, salaries, or professional fees. The list that follows classifies many types of income into three categories…"

Publication 54 tells you everything you need to know about FEIE in easy to understand language

No - https://www.irs.gov/individuals/international-taxpayers/foreign-earned-income-exclusion-what-is-foreign-earned-income