

Software wise, ProTools is what nearly everyone in the industry uses. Its been around forever. It enjoys a massive monopoly share of the market. But I don’t think it works on Linux. Mac n PC only.
For a cheaper Linux friendly option, consider Fairlight (the audio component of Black magic Resolve).
The name “Fairlight” has also been around forever, but was defunct for a while, and a handful of years ago the fine folks at Blackmagic Design bought the brand and IP integrated into their Resolve software. While Resolve has a free tier that includes Fairlight, some might require the Studio version which is a one time fee of ~US$300 and includes all future updates. I’ve heard some Pros speak highly of the new Fairlight. Can’t vouch for it myself but the mantra of the Blackmagic CEO is “we build the tools we wanted when we were working creatives.”
Private jet aircraft. They are very expensive to buy (say from US$ 5 to 70 million), but also shockingly expensive to operate. It’s hard to put an exact number to operation costs since it’s a mix of fixed and variable costs, but a fancy jet like a G650 is likely gonna be a few million a year in op costs (fuel, maintenance, management, crew salaries. training, hangar fees, facility fees, and so on. Also, few people actually buy aircraft directly. Rather they pay a management company to set up an ownership entity that owns and manages the aircraft for you.
It’s tempting to think of a jet as a vehicle, but really it’s more like paying people to do all the work and waiting for you so that the time you spend waiting is as minimal as possible. When most people fly, you buy a ticket, you book a ride to the airport, you go through security, customs, immigration, ticketing, baggage handling, and so on. Then you wait to board, wait for everyone else to board, wait for other planes to take off, maybe fly to a hub location enroute to your destination, and so on. If you’re in a plane like a G650, you pay other people to do all of this for you so that you can show up to a plane that’s fueled and ready to go, with the cabin AC at the temp you like, and your cocktail already poured sitting at the table by your seat. You get in, they start the roll.
It’s lavish, opulent, and wasteful in the extreme, but still a damn nice way to travel.