Then those nations who think it could happen for lesser discretions are really fucking stupid, because it’s taken Russia stealing land from Ukraine around a decade ago, and then formally invading the country as a whole, raping and pillaging and kidnapping a shitload of kids, before we finally did something.
And even then, we waited through another two years of Russia killing and raping and kidnapping Ukrainians and trying to destroy their schools, hospitals, power grid, etc. before we finally decided to do something about those funds, and it still may not even happen.
So the bar is set pretty fucking high, and the countries who have the kind of financial holdings overseas on that scale are almost all allies of ours anyways, and the number of countries that could actually do something on the scale of what Russia is doing is extremely small - basically the US, Russia, China, and maybe India. Out of China and India, neither wants to do something that would lead to us confiscating their assets or severing financial ties.
If anything, it’s one more reason why China will tread carefully.