I've heard if you pull in too much money abroad from your business or deposit too much in a foreign bank account as a tourist, it can raise red flags, is this true?

Even then, I understand you can have a single, international online bank account to prevent any need to deposit in a foreign one?

EDIT: The title is misleading; I saw someone express concern about scaling their business to 7 figures while being a digital nomad and I figured I should ask the question to this subreddit. Having only one US bank account and traveling abroad is the answer from what I can see. I wondered if their were safer banks to use as well, like Singapore.