YES, 90 days is the legal limit on ANY visit for any foreigner tourist.
If you want to stay longer, you need visa extension or some special visa for special situations, and provide some justification.
Unfortunately, there are millions of “tourists” here who are here for years and do not want to leave.
BTW, this 90 days limit is an international standard used by most countries, even US abroad.
If you want to spend long vacations on French Riviera, or Cancun, you have to leave after 90 days or apply for some special long term visa there!