@catch22
If we want to go on vacation, it is strongly recommended to check the insurance not only in the USA but also when traveling to Canada, Japan, Australia, New Zealand or Cyprus.
According to an article in a consumer magazine, it is strongly recommended to negotiate if you have to pay bills yourself. In most cases, the costs can be massively reduced. There are also said to be specialized companies that take over negotiations, some of which are also used by insurance companies.
Translated with DeepL.com (free version)
@damnthefilibuster
For Android I recommend Rethink
It has Wireguard, DNS and Firewall (per app and per IP/Domain)