Where do you live? You've obfuscated that and apparently dislike every place so it is very curiosity invoking to know where you currently reside. You appear to be having some sort of regret with your decision as you need to validate it with these simply inaccurate statements.
It is clear why you do not fit in and see the French Rivera as overrated. Firstly, the French Riveria is a vacation spot. To somehow discredit it for not being a tech hub (the worlds tech hub is Silicon Valley, which you likely know, and it is a literal s**t hole with one half being a typical︀ American suburb and the other being a city, San Francisco, overrun with junkies and homeless︁ people with the highest tax bracket being around 62%) is moronic.
The Rivera for 100+︂ years been the most elite vacation destination in the world for world elites for multiple︃ reasons including natural beauty, entertainment, gastronomy, and the fact that it is so close to︄ the industrial and financial centers of Europe. Nobody lives there full-time, they visit for the︅ summer. Almost every city on the Riveria short of some small parts of Marselle which︆ you'd never visit are pristinely clean. "Gucci hat wearers", whatever that even means, there are︇ actually very few people that wear ostentatious gaudy designer clothes, most wear stealth wealth brands︈ such as Loro Piana and or wear tailored clothing most often made of linen.
Have you been any historic beach clubs like Le Club 55, La Plage Keller, or any︉ of the vaunted Michelin star restaurants in Monaco or Provence such as Baumanière? If you︊ have, you would've never made the simply inaccurate statement. The crowds are absolutely not shallow,︋ most are from large cities in Europe, most have careers in finance, tech, or have︌ businesses, in fact there are many families with children at these establishments.
You seemed to︍ have gotten very poor advice and are the typical small business owner that made an︎ impulsive decision to relocate to save some money in taxes not realizing that to fully️ enjoy and realize the potential of tax optimization you have to consider the fact you will need to have multiple residencies and live in two different places at a minimum. Monaco is not dirty, the infrastructure is anything but poor. As for shady people, that an opinion, not a fact, Monaco is one of the safest places on earth, the saying holds true in any capital city "behind every fortune is a crime". Most Monaco residents spend at the most 3-4 months in Monaco, enjoy the events, beach clubs, restaurants, and the rest of the time are in another home.
