I'm in a region where online poker is legal (Canada) and can assure you it's not wildly popular, at least for my own definition of wildly. I've had a lot more conversations with people about crypto than poker in the past 2 years. Worldwide Google Trends matches the US trend of interest in Hold Em being down ~98% since 2004.

People may be underestimating how popular hold em was in the mid-2000s. As another comment in this thread said, it was even more popular than crypto is now, and that's without the extensive use of social media that we have today.