I have found entering the US after visiting the EU (Schengen, technically) to be more hostile.
The EU person typically looks at me for a second or two and then stamps. Maybe they ask me how long I'm staying, I say "a week" or whatever, and they stamp.
The US people (EWR or JFK, maybe it varies) have an attitude that suggests that they think someone who visited Switzerland or Denmark is likely to be coming back from a vacation training with ISIS. They also really can't decide if my girlfriend is supposed to come to the booth with me, all of the rules suggest no since we are not a family, but then they tend to get upset after they ask me if I was traveling alone and I say no.
Chrome is (or was) good. Safari is fast, but is a bit clunky and doesn’t have many extensions, and Firefox has never felt like a proper macOS app. Maybe it’s better on Windows where platform standards are less strict.