Probably more than a little behind Germany. I remember coming across an article about communication pitfalls in the business world that stem from Americans being indirect and using a lot of stock phrases for courtesy.
I remember well-known examples like "how are you" not expressing an interest in how the other person is doing. Or more obscure stuff like "we should meet for coffee soon" expressing not an intention to meet in the near future but a generally positive disposition towards the other person. Or them giving a positive response when someone suggests something they don't want and relying on nonverbal cues to convey their disapproval.
Perhaps it's proximity but as a German I find British indirectness (which often revolves around obvious understatement or sarcasm) to be easier to parse than American indirectness (which revolves around stock phrases). Americans can be a bit Darmok if you're not familiar with a phrase. Thankfully online communication doesn't feature them as much.