I mean Russia has fined Google 20 decillion USD. What is the point if you can't collect? Like me fining my neighbor 100 million Euro. He will laugh at me and tell me to get lost.
This is not a fictive fine, it's threats of imprisonment, and ignoring the whole thing means having to avoid travelling to or through the UK for life, and that's assuming the UK doesn't try to activate any sort of extradition agreements.
Even without going to prison, that's a permanent and quite significant theft of freedom of movement. If you ever travel abroad, you could end up accidentally booking a transfer through the UK.
No one ends up unintentionally transferring through Russia anytime soon. And likening the legal threats of a foreign nation to a joke from your neighbor makes no sense.
[1]: https://www.reuters.com/world/europe/belarus-forces-vilnius-...
Even more unlikely is the crown exercising the kind of power you're talking about. Never mind that Charles isn't the King of the majority of Commonwealth countries.
The UK is a misguided democracy within the usual group of countries considered "the west", enforcing stupid and broken laws in a highly questionable fashion that presents fundamental questions about jurisdiction in the modern world.
However, it is acting against an entity is cancerous enough that even the defendent is purely challenging (and getting support on) the technical legal grounds in a search for precedent.