Shotcut definitely works with Linux. Flatpak, Snap, Appimage, Tarball you choose.

security by poority

we are talking accumulated savings not turnover. Either way 10M is well above average lifetime earnings.

a rare case in which >100% is possible

Please explain how one legitimately earned 10 Million.

is it fair being born with wealth that pays you a daily interest that others work for a whole month?

Wealth, shown to scale