Which countries/flights are the US authorities aware that I've visited/taken?

As a US lawful permanent resident, I wonder which countries/flights the US authorities are aware that I've visited/taken. Assume that the US authorities has no special interest in me: I'm just curious to know what they know "by default", without any extra work on their side (e.g., perusing my passports to list my stamps or analyzing my phone/bank statements). Let's only consider US authorities directly pertaining to travel and immigration, i.e. the United States Customs and Border Protection (CBP) and the U.S. Citizenship and Immigration Services (USCIS).

I'm aware of the following:

1. Entries+Exits to the US via air travel are recorded. (source)
2. Entries to the US via land travel are recorded. (source)
3. The passenger name record (PNR) for passengers taking flights to, from, or through the United States are recorded. (source)
4. Flights to/from the partner countries of Five Eyes agreement (viz., Australia, Canada, New Zealand, the United Kingdom, and the United States.). (source)

What else?

Note that I don't submit the paper version of US customs form (CBP Declaration Form 6059B) when entering the US via air travel, as I have Global Entry, which means I don't declare which countries I visited prior to entering the US by air travel (unless of course if a CPB officer asked me this question specifically, which hasn't happened yet). Also, I have no idea how entries/exits by sea are recorded.

This question was inspired by Without passport stamps, can [the Israeli] authorities still know what countries I've visited?